Narrator: a high school
Teacher mysteriously
Disappeared.
Did she go on vacation without
Telling anyone?
Or was she taken against her
Will?
Could forensic science find the
Could forensic science find the answer?
Answer?
Not all students do well in
Traditional schools.
For teenagers in san antonio,
Texas, the robbins academy is an
Alternative for high school
Students who need extra help.
Well, robbins takes two kinds
Of students -- students who just
Simply don't do well in the sort
Of traditional high school
Environment and also students
Who have failed out of
Disciplinary issues, attendance
Issues, behavioral issues.
Narrator: -year-old
Diane tilly was one of the
School's founders.
Her success with troubled
Students earned her the nickname
"The miracle worker."
Diane tilly was the kind of
Teacher who really believed in
Her students and saw potential
In them, and they responded to
That.
She had something about her
That she was able to work with
These individuals and get the
Most out of them, motivate them,
Raise their self-esteem.
Narrator: the day before
Thanksgiving in ,
Diane tilly wasn't at school at
Her usual time.
So her coworkers drove over to
Her home to check on her.
They knocked on the door.
There was no answer.
They looked in the window.
They saw that the place was just
In a state of disarray.
They became alarmed.
Narrator: police were called
To the scene, and they knew
Immediately there had been a
Robbery.
It's ransacked -- things
Scattered all over the place.
The house looked like it had
Been turned inside out.
Even the linen closet had
Completely been gone through.
I just started thinking to
Myself, "okay, what could have
Happened here?
What happened to this woman and
Where is she and why is her home
Like this?"
Narrator: electronic
Equipment was missing from the
Home, as was diane's . Magnum
p*stol she kept for protection.
The most ominous clue in the
Very beginning was the b*llet
Hole through the couch that had
Lodged in the floor in the front
Room.
So there was a thr*at of
v*olence from the very
Beginning.
Narrator: police technicians
Found no foreign fingerprints in
Diane's home.
And diane's car was missing.
The lack of blood evidence
Raised the possibility that
Diane might not have been home
When the crime occurred.
So I was kind of also still
Waiting to see if maybe she
Would come through the door and
Say, "hey, why are you all here?
What happened to my house?"
Narrator: but there were
Other clues that signaled
Trouble.
In the bedroom, detectives found
An empty condom wrapper on the
Floor and a pair of tennis shoes
With one of the laces missing.
Diane's purse was still in the
Home, but her atm card was gone.
On the kitchen table,
Investigators found three atm
Withdrawal receipts time-stamped
Around : p.m. From the night
Before.
Interestingly, all three
Withdrawals were unsuccessful.
But who would forget their
Pin number three times and still
Have a transaction receipt come
Out?
Something's not right with this.
Narrator: so investigators
Decided to set a trap.
They asked diane's bank to keep
Her account open.
A lot of banks wouldn't have
Been this cooperative.
Upon notification that this card
Was very likely being used in
Fraudulent, criminal
Transactions, a lot of banks
Would have just closed this
Thing down.
And so I was like, "please
Use that card.
Please use that card so that we
Can zero in on you, and we can
Find you."
And hopefully we could find
Diane tilly, as well.
Narrator: the disappearance
Of diane tilly made headlines in
San antonio, texas.
She had helped many students
With learning problems and in
The process made many friends.
Most students don't talk to
Their teachers about their
Personal problems, but almost
All the students talk to her
About theirs.
Narrator: diane was a
Divorced mother of two grown
Children.
She lived alone, which explained
Why no one seemed to know where
She was.
Investigators spoke to her
Boyfriend, a municipal court
Judge who lived in dallas,
Miles away.
He told police he was in dallas
The previous night, and he'd
Spoken with diane at : p.m.
Phone records confirmed his
Story.
This was a serious
Relationship.
This was not someone who was
Vindictive or out to harm her in
Any form or fashion.
He was overly concerned for her
Welfare.
Narrator: police checked the
Airlines and found no evidence
That diane took a flight to
Dallas or anywhere else, for
That matter.
And they had to consider whether
Any of diane's students might
Have wanted to harm her.
That was something that we
Really looked at carefully.
Her students were troubled kids,
Troubled youths.
Like I said, some of them with
g*ng-member backgrounds and
Things like that.
Narrator: while investigators
Looked into that possibility,
They had only one sure lead to
Follow -- the atm receipts found
On diane's kitchen counter.
A code number on the receipts
Identified the atm that rejected
Diane's card.
It was inside a shell gas
Station just a mile from diane's
Home.
Fortunately, there were
High-quality security cameras.
We were able to actually see
An individual walk up to the
Atm, attempt to use the atm
Card, and then leave the store
With the three declined
Transaction receipts in his
Hand.
Narrator: the man was black
Or hispanic, tall and thin.
Twenty minutes later, a young
Girl used diane's atm card at
Another location.
And that one showed a
Hispanic to black female -- we
Couldn't really tell at the
Time -- a little heavyset, in
Probably mid-teens, early s
With a striped shirt on.
Narrator: on this attempt,
The girl used the correct pin
Number and successfully withdrew
$ From diane's account.
I thought, "wow, how gutsy or
Just how dumb."
But, then, again, I was
Thinking, "great.
This is a criminal at work,
Doing their thing, and this is
What's gonna lead us to them."
Narrator: and the two were
Driving what appeared to be a
Fleetwood cadillac, which looked
Like diane tilly's car.
A few hours later, a motorist
Found diane's car on fire in a
Deserted field.
When I got to the scene and
Saw them extinguishing her car,
I remember thinking, "god,
Please don't let her be in the
Trunk of that car."
Narrator: fortunately, she
Wasn't.
Another witness saw a white
Pickup truck leave the scene,
But he didn't get the
License-plate number.
They gave the same
Descriptions of the suspects
That we had on the surveillance
Videos.
Narrator: back in
Diane tilly's home,
Investigators were able to find
A partial fingerprint on a
Liquor bottle.
I think that he wore gloves
Through most of what was going
On in diane tilly's house.
He apparently took the gloves
Off long enough to enjoy a drink
From some scotch that
Diane tilly had in her kitchen,
Thus leaving the fingerprint on
The bottom of the bottle.
Narrator: investigators
Desperately wanted to find the
Man and young girl using diane's
Atm card.
They knew that diane tilly's
Life might depend on it.
We're just all holding our
Breath, and there are many
Prayers going up, I can assure
You, today for her.
I'm angry, and I want to know
Where she's at, and I just miss
Her.
Afraid to go outside.
We have not found a body.
We have not found substantial
Amounts of blood.
Something's not right.
Narrator: the prime suspects
In diane tilly's disappearance
Were the middle-aged man and
Young girl who were last seen
Driving a white pickup truck.
Every policeman in the area was
On the lookout.
And it wasn't long before a
Patrolman stopped two people in
A motel parking lot who fit that
Description.
They were identified as
-Year-old pearl cruz and her
-Year-old father, ronnie neal.
Both denied any involvement in
Diane tilly's disappearance, but
They admitted stealing her car.
He said, "I was at a car
Wash, and I found diane tilly's
Car."
And he said, "you're not gonna
Believe this, but the car was
Running, and the door was open,
And there was all this stuff in
It, and I just couldn't resist
It."
Narrator: and how did he get
Diane tilly's atm card?
Well, what he said was, in
The glove box of this car, he
Found diane tilly's atm card
With a little piece of paper
Just below it with the pin
Number.
I knew he was lying.
You could tell by his body
Language.
Everything that came out of his
Mouth was a lie.
Narrator: neal said he was
Following diane's disappearance
In the news and didn't want to
Be linked to it, so he got rid
Of diane's car.
His story made no sense
Whatsoever.
This was just a man who was just
Grasping at straws.
Narrator: a background check
Revealed ronnie neal had
Multiple convictions for robbery
And had recently been released
From prison for a weapons
Violation.
And police discovered a link
Between diane tilly and
Ronnie neal.
Ronnie met diane first
Through his lawn-mowing
Business.
Diane had apparently hired him
To do some work in her yard.
Narrator: ronnie neal's
Fingerprint matched the partial
Print found on the liquor bottle
In diane's home.
And a check of neal's cellphone
Records indicate he called his
Ex-wife on the night of
Diane tilly's abduction.
He gets on his cellphone.
He calls elisa stanley,
Pearl ann cruz's mother.
And we actually have this
Cellphone bouncing off a tower.
Narrator: the area was about
Miles from diane tilly's
Home, an area encompassing
Hundreds, if not thousands, of
Acres.
It did, however, lead to
Speculation.
I believe he was standing
Over the body of diane tilly
When he called elisa stanley.
Narrator: when questioned,
Elisa stanley confirmed the call
But claimed she knew nothing
About diane's abduction.
According to miss stanley, neal
Told her he came into some money
And asked her to go shopping.
Despite this evidence,
Ronnie neal refused to
Cooperate.
So police focused on his
Daughter pearl.
She, too, refused to cooperate,
At least initially.
I recall being very angry
With pearl ann over what
Happened with diane tilly and
Telling her that there wasn't a
Day that was gonna go by that
She wasn't gonna think about
This.
Narrator: and after days
In custody, pearl led police to
Diane's body.
It was the area where
Ronnie neal made his cellphone
Call, a deserted field under a
Pile of brush miles from
Diane's home.
Although the body was badly
Decomposed, it was clear that
She'd been sh*t several times.
Her hands were bound with a
Dark-blue polyester shoelace
That looked like the missing
Shoelace from diane's tennis
Shoes.
Both laces had the same, tiny
Specks, delustering agents added
To synthetic fibers to reduce
The shine.
And there were other
Similarities.
The plastic pieces on the end
Of the shoelaces are called
"Aglets."
The aglets were the same size
And the same color on both
Shoelaces.
Narrator: dental records
Confirmed the body was
Diane tilly.
Everybody had a tremendous
Emotional reaction.
It was very, very depressing.
It really was.
It was very sad.
There seemed to be no good at
All to take out of this story,
No good that could come out of
It.
Narrator: inside neal's
Motel room, investigators found
Diane's . Handgun, her
Luggage, and electronic
Equipment.
The b*ll*ts recovered from
Diane's body were badly damaged.
But the bottom part was
Relatively intact.
I didn't have the whole
b*llet, but that at least had
The entire circumference of the
Base that I could examine.
Narrator: ballistic experts
Could discern the lands and
Grooves on the bottom of the
Grooves on the bottom of the fatal b*ll*ts.
Fatal b*ll*ts.
The b*ll*ts test-fired from
Diane's g*n were the same as
Those that k*lled her.
You're looking for these
Matching scratches.
They have to have the same type
Of characters -- in other words,
Depth or width of them and the
Spacing between them.
Narrator: despite the amount
Of decomposition, scientists
Recovered a biological sample
From diane's body, which matched
Ronnie neal's dna profile --
Proof of sexual as*ault.
Eventually, pearl told
Investigators the entire story
Of what happened to
Diane tilly -- one very
Difficult to believe.
Narrator: after finding
Diane tilly's body, police
Arrested -year-old
Ronnie neal and his -year-old
Daughter, pearl cruz, and
Charged them both with
Kidnapping and m*rder.
Investigators discovered that
Ronnie neal had done some
Landscaping work for diane, and
She even gave him a swing set
She no longer needed.
Diane took a little bit of
Care to engage pearl when they
Went over to pick up the swing
Set.
She mentioned something to pearl
About, "I like your nail polish.
It's pretty."
And I think she asked pearl
Where she went to school.
Narrator: pearl cruz told
Investigators that she and her
Father planned almost from the
Start to rob diane.
Well, it's a very disturbing
Story.
It's disturbing on many levels.
It's not an easy story to digest
At all.
Narrator: on the night of the
m*rder, pearl knocked on diane's
Door and told her their truck
Broke down a few blocks away
And asked to use the telephone.
Once inside, pearl pulled a
g*n...
Sit down somewhere.
Narrator: ...then opened the
Side door for her father.
Neal tied diane's hands with a
Shoelace from one of her tennis
Shoes, then stole her g*n and
Atm card.
Neal took a drink of scotch,
Leaving his partial print on the
Bottom of the bottle, then asked
Diane for the pin number for her
Atm card.
While pearl guarded diane, neal
Went to the atm to withdraw
Money from diane's account.
That's when he discovered diane
Had given him the wrong number.
What's the right pin number?
Narrator: so he returned to
The house and threatened to k*ll
Diane's cat unless she gave him
The correct pin number.
[ g*n fires ]
At some point, neal fired a
Warning sh*t into the sofa.
Diane gave him the correct pin
Number, and the cat was
Unharmed.
Neal left the rejected atm
Receipts on the dining-room
Table, packed diane's car with
Stolen belongings, and sexually
Assaulted her.
Then, all three people, ronnie,
Pearl, and diane, drove away in
Her car.
They found a different atm
Machine, and this time pearl
Successfully withdrew $ from
Diane's account.
From there, they took diane to
The deserted field, and diane's
Final words were about
Forgiveness.
The last thing pearl said she
Heard diane say was, "bless this
Child."
Narrator: according to
Cellphone records, neal stood
Over diane's body and called
Pearl's mother, telling her he
Had recently come into some
Money and suggested they all go
Shopping.
Later, neal ditched diane's car
And set it on fire, thinking
They had destroyed all the
Forensic evidence.
But they still left plenty
Behind.
If ronnie neal is not
ex*cuted by the state, then it
Would really be a travesty.
We, the jury, find the
Defendant, ronnie joe neal,
Guilty of capital m*rder...
Narrator: in april of ,
Ronnie neal was tried and
Convicted of capital m*rder and
Sentenced to death by lethal
Injection.
Pearl's life was spared in
Exchange for her testimony.
She was sentenced to years in
Prison.
If you're looking for a
Teenager who's gonna get right
While incarcerated, I'm afraid
You're gonna have to wait in
Pearl's case.
She's a deeply disturbed and
Abused individual.
Psychopaths are not born.
They're created.
And pearl ann cruz was certainly
Created.
Narrator: people who knew
Diane tilly are struck by the
Irony.
Pearl was exactly the type of
Child diane devoted her life to.
Diane would have connected
With her, and she could have
Turned her around.
Narrator: in the end,
Pearl cruz's eyewitness
Testimony helped, but
Investigators say they could
Have gotten a conviction without
It.
We didn't have to rely on
Anybody's independent testimony
To convict ronnie neal.
We wouldn't have had to put one
Person except for the scientist
On the stand to convict this
Guy.
Not knowing science the way
We know science, these criminals
Just don't think, and that's an
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Documentary that reveals how forensic science is used to solve violent crimes, mysterious accidents, and outbreaks of illness.
Documentary that reveals how forensic science is used to solve violent crimes, mysterious accidents, and outbreaks of illness.