[ominous music]
[bike bell ringing]
[car rumbling]
[Emilia] Two young boys disappeared
off the streets of Chelmsley Wood
on Boxing Day night, 1996.
Never to be seen again.
[David] Patrick and David, just 11 and 13.
And 24 years later,
we still don't know what happened to those boys.
[eerie singing]
[ominous music]
[Emilia] Patrick Warren and David Spencer
disappeared in Birmingham in 1996, on Boxing Day evening.
They were only 11 and 13,
and they became known as the Milk Carton kids.
[David] Yeah, because these were
the first missing children ever to be placed
on milk cartons in this country.
[Emilia] And I know that this is a case
that has always bothered you, hasn't it?
[David] Well, I started to teach in Birmingham
the following year.
But more importantly, their bodies have never been found,
and nobody's ever been caught.
Despite there being two
major police investigations in 1996 and 2006.
[David] So, I want to know
why the police investigation wasn't successful,
and therefore, I think we've got to re-examine this case
to see what happened to the boys.
And the best place to start
is by talking to their family,
who I know still live in the local area.
And we can look back at newspaper reports,
and see if they throw up any new witnesses
or new information.
And we know that the last place
that the boys were seen alive was at a petrol station
in Chelmsley Wood, near to where they lived.
[Emilia] Which is now a KFC.
[footsteps]
[tense piano music]
[Emilia] Feisty duo.
Shoplifting, they'd been in scrapes.
Teenage runaways.
What? "Detective inspector Derek Biggs
of West Midlands Police said there was no reason
to believe any harm had come to the pair."
Inspector David Chapman of West Midlands police said,
"They're both streetwise lads."
They're 11 and 13.
[phone ringing]
[David] Hi, Emilia.
So basically, I've read all these articles from the time.
I don't know.
I feel confused about the way the case was reported on,
and I wonder what was going on
with the police investigation.
[David] That's interesting.
[Emilia] The way the boys are described in the press,
like the phrases they use, the words they use,
it's like they were asking for it.
You know, despite their characters,
whatever their characters were,
they're still vulnerable children.
Could they have fended for themselves at that age?
I don't think so.
[David] No, they couldn't.
[Emilia] And it's heartbreaking where their mums
are making the appeals for the boys.
"Two tearful Midland Mums today pleaded
with their missing sons, "Please come home.""
[dog barking]
[Christine] Brings tears.
[David] What age was he here?
[Christine] 11.
[David] 11.
He's not a pushover.
No, definitely not. You can see he's not a wimp, look.
He can look after himself.
[David] What sort of personality did he have?
[Lee] Just a little mischievous kid, like.
A lovable rogue, isn't it?
What impact has losing your older brother had on you?
It's ruined my life.
[David] In what way?
In my head ...
I can't even explain. In here.
[Christine] I'll never get over it. Never.
I want closure of this. I want my son home,
so I can put him to rest.
I want something I can properly grieve.
[David] Lee, can you just explain about Patrick and David,
on the night of Boxing Day?
Paddy said he was stopping here.
David said he was stopping there.
They both at some point gone to the petrol station.
Two boys, and a bike.
[David] When were the boys first reported as missing?
[Christine] Andy, Paddy's brother,
came here saying, "Is Paddy here?"
I Said, "No, David, said he was staying at yours."
He says, "Well, he hasn't turned up."
[Lee] Andy then reported to the police
that David and Paddy didn't turn up to his house.
10, half 10, something like that, right?
The police didn't come here till half four.
In the morning?
[Lee] In the morning.
They thought the kids were here.
I said, "They're not here."
"Can we check the bedroom?" I said, "Course you can."
Then they left, they says, "Okay."
Never heard nothing then, for three days.
Three days.
[Christine] Three days it took them to come out.
[David] Did they think this was about two boys
that were running away? Did they think
they were missing people?
Did they think there was a vulnerability going on here?
Because he had a bit of a criminal record,
and he was knew by the police,
it was like, "He'll come home when he's hungry."
[David] Mhmm.
[Lee] That was said to me, when I was a little boy,
by a police officer.
[Christine] No way would he have left me,
and he wouldn't have seen me go through all this torture
without contacting me, if he'd just run away.
He would have come back.
I reckon the night he went missing was the night he died.
[David] When did the detectives, the CID branch,
get involved?
Three months, I think it was, after they went missing.
Three months?
Three months.
They were still, for the first three months,
treating this as a missing persons case?
Why isn't it a murder case?
Why isn't it a double murder case,
for two kids from Chelmsley Wood? Why isn't it that?
You never thought it was taken seriously?
[Christine] No.
[David] What would the police have had to have done
to demonstrate they were taking it seriously?
Their job properly.
Just that, isn't it? You know what they're paid to do.
Come in of a morning, there's reports of a boy.
"Right, someone's reported a boy,"
so then you put him as a missing boy,
then you inform ...
All your police are coming on the day,
and then they all look for the boy.
Just genuinely their job.
Who is he? Who is he? Who is the guy in that station
that decided that it was not important for my brother
to be dealt with properly?
Yeah.
[Christine] It's an urgent-
It's disgusting.
Police done nothing right at the start.
They are still doing nothing right now.
I think the police are not interested in this case.
Ask me why, I don't know. I don't know the reason,
but there is a reason.
There's a reason they're not interested in it.
Why?
[sombre music]
[bike bells ringing]
[Emilia] You know Birmingham so well.
Tell me about Chelmsley Wood.
[David] Chelmsley Wood's a council estate.
Chelmsley Wood's people who are holding down probably two,
perhaps three jobs to get themselves through the month.
And I worry, did David and Patrick not get
the policing they deserved,
because they lived in Chelmsley Wood?
Did that have an impact on the policing investigation?
You think it did?
[David] People imagine that all murders
are treated the same,
but there's no way that David and Patrick
were ideal victims.
[Emilia] What is an ideal victim?
[David] Frankly, a middle-class white girl,
with blonde hair and blue eyes.
That case will get lots of media attention.
And if it gets lots-
[Emilia] Just from the way that they look?
Just from their class, their gender, their ethnicity,
they will get more attention from the media,
which in turn puts more pressure on the police
to solve that case, as opposed to the cases of other kids
that might go missing.
[Emilia] I think that's shocking.
[David] But that's the reality.
That's the reality of murder,
that I see all the time in my work,
because of the C-word: class.
And Chelmsley Wood is a working class area.
[ominous music]
[phone dialling]
[David] Hello, this is professor David Wilson.
I can't take your call, but please leave me a message.
[Emilia] David, I've been asking around in Chelmsley Wood,
and I've found a witness who still lives in the area.
Ellen Morgan. She was the petrol station attendant
on the night the boys went missing.
The police have spoken to her twice.
She might've been the last person to see them.
I'll let you know what I find out.
Do you remember Patrick and David well?
Were they familiar faces to you?
They was, yes.
[Emilia] Why did they come to the petrol station
that night?
[Ellen] Because they was hungry.
[Emilia] And did you chat with them that night?
I talked to them a bit, and I said,
"Well I'll buy you a pocket of biscuits."
They went and sat over there on the steps.
That used to be steps coming down.
Could you see them from the petrol station?
Yeah. Sitting there, eating the biscuits.
[Emilia] Did you notice what happened after that?
Where they went?
[Ellen] No, they just disappeared.
[Emilia] Tell me about the petrol station
where you worked.
Well, the pumps was here.
Yeah.
And then further up here, it's the shop.
You just have to serve with the hatch over night time.
It's about here.
And that's how you could see where the boys were.
And then how did you communicate with people who were-
[Ellen] It was a microphone.
Right.
[Ellen] And you could hear anything what was ...
Anybody walking around.
[Emilia] So it was a quiet night,
and a microphone would have picked up any noise.
So anything, any sounds of screams-
[Ellen] Yes.
Or a struggle would have been picked up by the microphone,
and you would have heard it that night?
[Ellen] Yes, yes.
Yes, I would have.
This is about where the bin area was,
where Patrick left his bike.
In this area.
[Emilia] So Paddy's bike was left here?
[Ellen] Yes.
Everybody said he really wanted that bike.
His dad bought it for him, I think, the day before.
[Emilia] And you didn't see him with it over there?
[Ellen] No.
[Emilia] And what about CCTV at that time?
Did the petrol station have CCTV?
[Ellen] They had a video recorder.
What it recorded, I don't know.
Do you know if anyone ever came to check the CCTV?
To my knowledge, they didn't.
But it must've picked up something.
[Ellen] Well, you would think so.
You would think so, but I don't know, you know?
Nobody ever told me anything about that.
[egg cracking]
[doorbell ringing]
Thanks, Roisin.
Thank you.
Thanks so much. Fab.
This red Apollo bike was given to Paddy for Christmas.
So it was like a treasured present.
[David] The bike's really important then,
because if they had gone missing,
if they were running away,
presumably they would have taken the bike.
And also wouldn't the fact that Paddy had left his bike
and not come back to pick it up,
wouldn't that raise a massive alarm
that something had happened to the boys?
Crucially, there was a microphone on the forecourt side
of the petrol station
that would have picked up if there had been
any noises of screams of the boys
or anything that suggested a struggle.
[David] David was a talented boxer.
This is a boy that would have shouted and screamed
and resisted being abducted into a car.
And given what you've discovered,
this tells us a wee bit about what might have happened
on that date.
[Emilia] I read an article about it actually,
and I think I've tracked down someone
who might be able to tell us some more.
Leda Reynolds.
[David] Tell me about Leda Reynolds.
She's a local journalist?
Yes, who's written extensively about the case,
and she suggests that the boys were abducted
and she even names a suspect.
[David] Who's that?
He's a guy called Brian Field
who was living in the area at the time,
and Leda has even met him,
because they used to drink in the same pub.
Well, maybe we should go to that pub.
Unfortunately, the pub is long gone,
but I have arranged to meet her nearby.
[Emilia] So, clearly, this is the case,
that you have cared about
and you care about David and Patrick
and what happened to them,
because you've been involved with it for so long.
The case had always bothered me.
And I'm really glad you're both investigating it,
because something needs to be done.
Leda, tell me a little more about this man, Brian Field.
[Leda] Brian Field was a gardener,
and he'd lived in Solihull.
When I went to the pub, he was chatting, he was laughing.
We were taking part in a quiz.
Have a look at this.
[Emilia] A video of him.
[Leda] It's from a documentary he appeared in.
[Emilia] He's doing a strip tease.
[Leda] In the middle of the pub.
Oh my God.
[Leda] So when I find out later on
that he'd actually been convicted in 2001
for the rape and murder of a school boy called Roy Tutill,
I was really shocked.
In 1968, Roy Tutill, he was on his way home from school.
He went to Kingston Grammar School in Surrey.
Unfortunately for Roy that day, Brian Field,
who worked and lived in the area was driving past,
offered him a lift, and raped and strangled him,
before dumping his body.
[Emilia] And how did Brian Field get caught
for the murder of Roy Tutill?
[Leda] He was stopped for drink driving
and they took a swab from his cheek.
Surrey Police run it through the DNA database,
and it flagged up with a semen stain
left on the clothing of Roy Tutill.
[David] Leda, what happened
after Brian Field's conviction?
[Leda] Surrey Police had contacted different forces
around the country,
to say, "You need to be looking at this man."
25 other child disappearances should be investigated.
And as part of those, one of them should be
the milk carton kids.
Patrick Warren and David Spencer.
[sombre music]
[Emilia] Then what happened?
[Leda] Well, I moved away from Birmingham.
I went to work somewhere else.
When I got back in 2006,
I wanted to find out what happened to the boys.
So I rang West Midlands Police,
and they told me that the still a missing persons-
Missing persons?
[Leda] Missing persons inquiry.
So for five years,
they hadn't been looking at Brian Field
as a possible suspect for the kidnap and murder
of these children.
So I built up this dossier, took it to the police.
There was me and some people from the paper
that was working at the Birmingham Mail.
I said, "You need to look at Brian Field."
Two weeks went by,
and I was told that there'd be a press conference.
And they announced there that,
"We believe they have been murdered.
Brian Field is one of a number of avenues
we're investigating, about the missing boys."
[David] And what happened?
[Leda] He's at prison.
They picked him up, they brought him to a police station
in Birmingham and he was interviewed twice
under caution about the missing boys.
And he denied all knowledge of the boys.
West Midlands Police said they were searching
a number of sites in the hunt for the boys.
[David] And so presumably,
they did not find ...
[Leda] They found nothing.
Yeah.
[tense music]
[machine beeps]
Thank you.
[David] We have to look more closely at Brian Field
in the story of David and Paddy,
and here are two pictures of him
at the milk marketing board,
and then when he's arrested for the drunk driving charges.
I want to know more about Field's offending background.
What do you have?
Brian Field has been convicted six times
of sexual offences against teenage boys.
Six times.
Mhmm.
[Emilia] His first conviction was
for gross indecency at Wrexham, in 1969.
In 1972, he was convicted for a second time
for indecent assault at Aberdeenshire.
And then his third conviction was for gross indecency
at Oswestry.
[David] So back in the Midlands.
[Emilia] The fourth conviction in 1983
was for two counts of buggery at Shrewsbury,
and his fifth conviction in 1986
was a double kidnapping at Oswestry.
Oh, now that's significant.
It seems to me, a double kidnapping,
I want to know more about that offence, I think.
So, they were two teenagers, 13 and 16,
and they got into Field's car.
They'd hitched a lift,
and when he didn't go towards their home
and took a different direction,
they tried to get out of the car
and he then threatened them physically.
But they managed to jump out
of the moving car.
[David] I don't know of any other offender
who's ever been convicted of attempting
to abduct two teenagers at the same time.
I don't know of any other offender.
That would be really unusual for me.
[Emilia] And the sixth conviction
was for the murder and sexual assault of Roy Tutill in 1968.
[David] So we know he's been offending
as far back as 1968,
but there's also something significant there.
There are no charges between 1986 and 1999,
when he's going to get caught drunk driving.
This kind of offender, in my experience,
doesn't stop offending.
So what other crimes might he have been committing
during that period?
[Emilia] We know that he was questioned
about the disappearance of David and Patrick
who vanished in 1996.
Field was living near the area at the time,
and in 2006, he was questioned
about the boys' disappearance,
but he's never been charged,
presumably through lack of evidence.
And the case is still active.
Three other people were arrested
in connection to the disappearance of David and Paddy,
but no charges were ever made.
[David] When we think about that,
we've got somebody who's already committed a murder
and a number of child sexual offences.
I think we've got to conclude Brian Field
is the prime suspect.
Let's see if we can find out more about Field in this area
post-1986.
[phone ringing]
[Emilia] I've been doing some research
into other offences Field might have been
connected to in the Birmingham area.
There is another case that has been linked to Brian Field
of another boy who was found hanged in 1984.
This boy-
[David] Another boy?
Another boy. This boy's name was Mark Billington.
I did some research,
and his parents believe that Brian Field
was responsible for their son's death.
There were other suspects arrested in connection
with Mark Billington's murder,
but nobody has been charged and it remains unsolved.
So Brian Field has not been ruled out.
[David] So, this is a completely different murder
that he's suspected of,
not involving Paddy and David Spencer?
Yes.
[bike bell ringing]
[Emilia] I've managed to track down Mark Billington's
parents and sister. They still live in the area.
[Winifred] This is our son Mark.
He was 13 when this picture was taken.
He was a kind, gentle boy.
When the police said that Mark had killed himself,
nobody believed it.
[Emilia] So there were two inquests-
[Roy] Yes.
And the first inquest into Mark's death
recorded an open verdict.
And then there was a second inquest about Mark's death,
made it into a murder inquiry.
How many years later?
We're talking about '85 to 2000 and ...
[Cheryl] It was 2002.
Two, yes.
[Emilia] Tell me what happened in between.
[Roy] Investigation was probably going on
in the background,
instigated by Bob Pool.
[Emilia] Now, who was Bob Pool?
Bob Pool was a Sergeant in the police force.
And he literally took up the chalice,
and he did not believe that Mark
could have committed suicide.
Right from the first investigation.
[Winifred] Bob Pool paid for a knot expert
to come over from Switzerland,
and he categorically said there was no way
any child could do those knots.
They were too sophisticated.
At the end of the day, it was murder,
which we've been saying right from day one.
[Emilia] So Bob Pool felt that
you hadn't been fairly treated by the police,
and that's why he continued to be involved
with trying to prove that someone else
was involved, and that it should have been
a murder inquiry.
[Winifred] I think he rattled a few cages.
Yes.
And I think that's what started the police going again.
That and Brian Field's conviction in 2001.
[Winifred] Yes.
[Emilia] When he was investigated for 25 other cases
that he might have been involved.
When did you first hear about Brian Field?
[Roy] Again, from Bob Pool, saying that,
"This guy is a well known paedophile."
He's done so many indecent criminal acts.
Is there any way that he could have got to know Mark?
[Roy] Yes.
He lived about a mile and a half from where we were.
So he's got easy access to the playing fields
at the back of where we lived.
[Winifred] He was very trusting, Mark was.
Yeah.
If somebody told him a story, he'd believe them.
[Cheryl] In 2002, as the case was reopened
and re-looked into, they were looking for the artefacts,
but they were lost.
So they can't get any DNA evidence?
[Cheryl] With the Roy Tutill case,
which was the case that convicted
and put Brian Field away-
Absolutely.
[Cheryl] Through the DNA screening, 30 years later,
that's taken away from us as a family.
And there's been no explanation.
[Cheryl] It's documented that they searched for them,
but because Mark's case was never officially
recorded as a crime-
Right.
They didn't have to then keep the artefacts.
[Winifred] I just dread the thought
of other people going through it.
[Emilia] We're looking into the disappearance
of David Spencer and Patrick Warren.
When you heard about that case,
did you associate it in any way
with what had happened with Mark?
[Roy] Yes, obviously. You start thinking
about the possibilities.
[Emilia] Yeah.
Once that guy's name comes up.
Brian Field. You think, "Is he responsible for that?
For that? For that?"
He's been responsible for so many things.
I just wish I could pin him down to Mark.
Someone took my child's life. Our child.
How'd you cope with that?
When you know someone ...
[sombre music]
[Emilia] Just been to meet the Billingtons,
and there is a connection to Brian Field.
Field was possibly living one mile away
from the Billingtons at the time.
[David] So how does this relate to our case?
[Emilia] Roy Billington, Mark's dad-
Yeah.
Has collected all the correspondence and information
he got from Bob Pool.
[David] Who's Bob Pool?
Bob Pool was a junior officer on the case,
and he helped the family because he felt
that there had been gross injustice
done to them.
[David] Can we get access to Bob Pool?
[Emilia] No, Bob Pool has died.
But this is one of the emails from Bob Pool.
Read this bit here.
"I am still working on seeing two
rather reluctant witnesses I've located
at Chelmsley Wood, in respect for the missing boys."
So our two boys.
Oh my gosh. "One of whom saw Field with both lads
a few days before they disappeared."
[Emilia] That's the first time that we have
any connection between Field and the two boys,
possibly knowing them before they were taken.
[David] And it also explains something.
We've always been concerned about the fact
that there was no noise on that night.
Well, if the boys knew Field
prior to Boxing Day night when they disappear,
that's why nobody hears anybody scream or shout,
or try to fight as they're being abducted.
[Emilia] And also, we thought that his MO
was as an opportunist.
This suggests that there was grooming involved.
[David] For me, the case is closing in
around Brian Field as a suspect,
but there's still missing pieces,
like how he operates when he commits his crimes.
So I'm going to interview Dr. Graham Hill,
who's an expert on predatory paedophiles.
Graham has interviewed Brian on a number of occasions,
and crucially got him to admit to the murder of Roy Tutill.
[Brian] If I did get too involved,
I would have to tell them about my past.
And that's why I sort of work on my own and ...
And keep my distance.
[David] He comes across as quite a kindly
grandfather figure.
Don't get sucked into seeing a little,
gray-haired old man.
In 1968, he was in his 30s, fit, ex-Marine,
rugby playing, worked on the land.
He would have been an enormous threat to Roy Tutill.
If I had a drink, I'd get that urge,
that I want to have sex.
And that's when I ...
My trouble started.
I just lost my head or something.
[David] So he's revealing alcohol's one of his triggers,
in relation to offending.
Why is he telling you that?
He sees alcohol as a precursor to a lot of his offences.
And in fact, when you look at a lot of his offences,
he's committed them while he's been drinking.
So we all know that alcohol is a disinhibitor,
because Brian is, in essence, a preferential offender.
So, explain preferential offending.
[Graham] Okay, so preferential offending
is where the offender acts compulsively
to fulfil a sexual need.
Brian is, in essence,
sexually interested in prepubescent boys.
In fact, he's what's known as a hebephile.
Given the opportunity, right circumstances,
right place, right time, he would offend
against that type of victim.
I was driving along the road,
and I saw this lad get off the bus.
And he thumbed for it.
I'm sure he thumbed for a lift.
He stood there.
I stopped and he got in.
[Graham] You're in the car?
[Brian] Yeah.
[Graham] What do you try to do?
I tried to bugger him.
Right over the front seat.
Was he crying? What was he doing?
No, no, he wasn't crying.
I told him to get dressed again.
And then I was panicking like anything.
How did you strangle him?
I just
put the tie around his neck and just tightened it.
He just sort of convulsed a bit,
sort of gasping for air and I just carried on,
and suddenly, he went lifeless.
[David] So, in the end, when you've got him in this room,
and he's admitting to the murder of Roy,
how does he at that stage ...
Does he feel relief, or does he think, "I've been caught"?
[Graham] My personal view is that,
at this stage of the interview,
Brian is really quite happy to offload all of this guilt
and the frustration and the burden
that he's been carrying for a long time.
Don't get me wrong.
Brian is a predatory sex offender.
I've done several other interviews with Brian Field
since this time,
most recently in the last couple of years,
I've I've interviewed him.
So-
[David] May I ask, why were you interviewing him
in the last couple of years?
[Graham] I interviewed him for West Midlands Police
about other offences.
I'm presuming you asked him about the milk carton kids.
[Graham] There was some tantalising little
bits of information that he gave up.
He never admitted that he abducted those boys,
but I think we got to the stage that ...
Certainly, the West Midlands Police
got to the stage where they could put him,
the night in question, in the vicinity
of where the two boys went missing,
and that he'd been drinking that night,
and he was in a white van.
I don't believe in coincidences.
You've got a man who's got a previous conviction
for abducting children, abducted two children together.
He's in the vicinity of where two boys go missing.
Ultimately, for me, that makes him a very good suspect
for the boys.
[David] The abduction of the two boys in Birmingham
fits his MO perfectly.
In my view, I've never seen a suspect
that is better for the abduction of those two boys
than Brian Field.
[David] I was so surprised by what Graham Hill
has told me.
What?
[David] In the last two years,
he's been asked by the West Midlands Police
to interview Brian Field in relation
to David and Patrick going missing.
Does that mean that they've found something new, then?
[David] Or it might just simply be
that Field's now in his 80s,
and they're worried that he won't be with us
for very much longer.
But more importantly, Graham told me
that Field had revealed to him some tantalising information
that he wasn't prepared to go into,
because it's an active investigation.
Right.
[David] But Graham is convinced
that this is the prime suspect
for the disappearance of David and Patrick.
[Emilia] But then, why haven't the West Midlands Police
charged Field with the disappearance of Patrick and David?
[David] I have no idea, except Field is in prison.
He's never going to be released.
So he's low risk.
Just because he's low risk, and therefore low priority,
where does that leave David and Patrick's family?
[David] I totally get that,
but we can try and do some geo-profiling
to find out what the families have said they want,
which is where are the boys' bodies.
Wait, geo-profiling, it's-
[David] So, geo-profiling is a scientific way
of trying to predict where an offender might live,
but we can turn that on its head to predict
where an offender might've disposed of bodies.
[Emilia] But the police have already done searches
for the boys' bodies, and they've never found anything.
[David] But they've never commissioned any geo-profiling.
And I happen to know the country's leading profiler.
What we're really interested in here
is the journey from abduction
to where David and Patrick ended up.
What we're trying to do is establish a search area
of where we might find the boys' bodies.
Offenders, like us, are creatures of habit.
Field is no different.
We find a range of about 10 kilometres coming up
time and time again, between his home
and where he has committed his crimes.
So what we need to do
is take that 10 kilometres and use it
as the radius of a circle centred on the location
where we know David and Patrick were last seen,
which is the Shell garage in Chelmsley Wood.
What we're trying to do is establish what happened next,
after the boys got in that car.
We know that offenders tend to be drawn
to committing their crimes in areas they're familiar with.
So, Field in a car with the two boys,
he's going to want to get back into a familiar environment.
So, my hypothesis is that Field would have gone
towards the South, into this area.
All of these locations relate to something
about his lifestyle.
Places where Field lived, where he drunk.
He did odd gardening jobs.
And what I'd be looking for here
is locations that were suitable,
that offered the accessibility and the familiarity
and the privacy to afford Field the time
to successfully commit this crime,
and then dispose of the boys' bodies.
One area strikes me as particularly interesting;
the area of JB's golf club,
which is now a football ground, I believe.
So if we can zoom in on JB's, the area,
JB's was a location in the '90s, around the right time,
where Field worked, had a gardening job.
He lived in a caravan on the site.
And what we can see is that
we've got a lot of green open space
and with the right local knowledge,
there are probably multiple suitable locations here.
[David] And Sam,
where do you think we'll find David and Patrick?
So we know that we can never put an X on a map
and say, "That's where you need to start digging,"
for example.
But what this has done is taken a search area
of a radius of 10 kilometres down to actually
a reasonably small area.
And what I suggest that you both do now
is go in and immerse yourself in this environment
and experience this as he would have done,
through his eyes, back in those days.
[sombre music]
[Emilia] Let's put a narrative together,
with all the information that we've got
since we've been here.
[David] Graham Hill told us the police have evidence
that places Brian Field close to where the boys
were last seen on that night,
and that he was in a white van.
We've got some answer, in terms of why there's no struggle
on that particular night.
There's a witness that said Field knew the boys,
the boys knew Field.
Now that's quite crucial, isn't it?
Because when he rocks up in his car on Boxing Day night,
that he's somebody that's familiar to them, isn't he?
So they would have got into his van, possibly willingly,
and then he could take them where he wanted.
[dramatic music]
[David] And then the key question
was always, thereafter and remains,
well, what happened?
Where does he go after he gets the boys into his van?
How's he going to cope with the two boys in the car though?
That's what we've now got to concentrate on.
How does he manage to subdue both boys,
when they realise something isn't right?
Previously, he's tried to do things to boys in his car.
The Oswestry boys, they were hitching a lift,
and then he threatens them once they're in the car.
[Brian] I think they were about 12, 13.
I didn't actually attack them, because I was driving.
I told them to get undressed.
I told them to get undressed,
because I was going to take them ...
I had a friend's farm up in the hills.
And I was going to ...
I don't know what I was going to do with them.
[David] Geo-profiling tells us Field would have travelled
with David and Patrick from Chelmsley Wood South
towards here, Solihull, which is where he lived
and felt comfortable.
[Emilia] Well, we're in the search area,
close to JB's, where Sam pinpointed.
[David] Geo-profiling gets you so far,
but until you're in the actual spaces
that those maps reveal,
a whole new picture emerges.
Suddenly it becomes real.
[Emilia] You really get a sense that
this is the kind of place that would have given Field
the cover and isolation he needed
to do what he was going to do with Patrick and David.
[David] The long and the short of it is
that we can't today say the body is there.
The bodies are there.
This place, for me, really needs
to be appropriately searched,
and we should give all of our information,
both to the families-
[Emilia] And the police.
[David] And the police.
[Emilia] Tragedy.
It's a tragedy for Patrick and David's family.
It's a tragedy for the Billingtons,
and all the other families involved.
[David] We know Brian Field murdered Roy Tutill.
If he's ever brought to justice
for the murders of David and Patrick,
and if he's found guilty of Mark Billington's murder,
that's multiple victims over a long period of time.
I feel, as I'm standing here,
we could be uncovering
one of the worst serial killers of children
this country has ever known.
[sombre music]
[eerie child singing]