FIND
FIND CRIMINALS. >> I REMEMBER THERE WERE JUST
LOTS OF POLICE CARS.
>> Reporter: CINDY BORGENSEN
REMEMBERS THE DAY.
>> IT WAS A BLUR AT THE TIME.
>> Reporter: THE DAY HER SISTER
WAS KIDNAPPED OFF A CALIFORNIA
STREET AND MURDERED.
>> MY DAD'S OVERWHELMING
FEELING WAS ANGER THAT SOMEONE
TOOK HIS GIRL.
>> Reporter: HAUNTING THEIR
PARENTS FOR THE REST OF THEIR
LIVES.
LIVES.
LIVES. >>
LIVES. >> I THINK THEY ALWAYS HOPED
THAT THERE WOULD BE AN ANSWER,
THAT THERE WOULD BE SOMEONE
ARRESTED.
ARRESTED.
ARRESTED. >> Reporter: FOR 45 YEARS,
NOTHING.
NOTHING.
NOTHING. >> MY MOM PASSED AWAY IN '05,
MY DAD IN '08.
>> Reporter: AND THEN IN
FEBRUARY, INVESTIGATORS
FEBRUARY, INVESTIGATORS BELIEVED WAS THE ANSWER ON A
COLORADO STREET.
COLORADO STREET. THE MAN HAD AN ARREST RECORD
STRETCH BACK TO 1989 WHEN HE
WAS 13.
WAS 13.
WAS 13. HE ARRIVED IN COLORADO IN 1996
AS A DRIFTER WORKING AT THE
STATION THERE AT COLORADO
BOULEVARD.
BOULEVARD. KNOWN AS A MAN SOCIALLY
IMMATURE AND PSYCHOLOGICALLY
UNSTABLE, HE STOLE 250 BUCKS
FROM THE FILLING STATION AND
THEN EVENTUALLY FLEEING TO
CANADA, ENDING UP BACK IN A
COLORADO PRISON IN 1969.
A NEW MUGSHOT MARKED HIS PAROL
TWO YEARS LATER.
IN THE SUMMER OF 1973, LINDA
WAS IN SUMMER SCHOOL.
ON JULY 6TH, SHE LEFT HER BIKE
AT HOME, CATCHING A RIDE TO
CLASS FROM HER MUSIC TEACHER.
>> SHE DIDN'T WANT TO WALK HOME
THAT DAY.
THAT DAY.
THAT DAY. SO SHE CALLED MY MOM.
AND MY MOM AND I WERE SITTING
THERE.
THERE.
THERE. AND SHE SAYS, JUST WALK HOME.
YOU KNOW?
YOU KNOW?
YOU KNOW? I'M REALLY BUSY.
JUST WALK HOME.
>> Reporter: LINDA NEVER MADE
IT.
IT.
IT. THE
IT. THE NEXT DAY, A MAN LOOKING FOR
FROGS FOUND HER LIFELESS BODY
IN A MARSH.
>> MY DAD COMES OVERS AND SAYS,
THEY FOUND HER.
AND I SAID, GREAT.
HE SAID, NO, THEY DON'T
UNDERSTAND.
UNDERSTAND. THEY FOUND HER.
I'M NOT -- IT'S NOT MAKING
SENSE BECAUSE YOU DON'T THINK
THAT YOUR SISTER'S BEEN
MURDERED.
MURDERED.
MURDERED. >> Reporter: THERE WAS A
COMPOSITE.
COMPOSITE. THERE WAS A REWARD.
>> OVER THE YEARS, MY FAITH HAS
GROWED AND STAINED ME.
>> Reporter: WHAT WASN'T WAS AN
ANSWER.
ANSWER.
ANSWER. >> I HAD TO FORGIVE THIS
INDIVIDUAL, WHETHER THEY WERE
ALIVE OR NOT.
>> Reporter: IN 1974, LAYTON
WAS BACK IN COLORADO AND BACK
IN PRISON, POSING FOR GLAMOUR
SHOTS FOR ANOTHER INMATE BEFORE
BEING PAROLED ANOTHER YEAR AND
FADE INTO SOCIETY FOR MORE THAN
FOUR DECADES.
FOUR DECADES. >> IT'S CHEAPER, FASTER, MORE
SENSITIVE.
SENSITIVE. >> Reporter: BUT AS THE
CALENDER ADVANCED, SO DID THE
SCIENCE.
SCIENCE.
SCIENCE. THE SCIENCE OF DNA TESTING.
>> THAT'S THE INTERESTING THING
ABOUT DNA.
ABOUT DNA. FURLOUGHED WORKERS STORE IT
PROPERLY, IT WILL LAST
THOUSANDS OF YEARS.
>> Reporter: FORMER DENVER DA
MORRIEY HAS SEEN DNA UNLOCK
DOZENS OF COLD CASES.
THEY HAD LINDA'S THINGS AND
DNA.
DNA.
DNA. LAST
DNA. LAST YEAR, THEY LAUNCHED A
TWITTER CAMPAIGN TO TELL
LINDA'S STORY.
LINDA'S STORY. AND THEY USED THAT D NA IN A
NEW WAY, WORK THAT LINKED THEM
TO JAMES ALLEN LAYTON, NOW
CALLING HIMSELF JAMES ALLEN
NEIL LIVING IN COLORADO.
>> HE SAID, SIT DOWN.
>> WE'RE HERE TO ANNOUNCE THE
ARREST OF JAMES ALLEN NEIL.
>> WELL, I WANT YOU TO KNOW I
ARRESTED A MAN AT HIS HOME IN
COLORADO, IN MONUMENT.
>> Reporter: THEY TOOK THAT
SAMPLE FROM THE CRIME SCENE AND
USED IT TO IDENTIFY RELATIVES,
BUILDING A FAMILY TREE IN
SEARCH OF A SUSPECT.
COURT DOCUMENTS IN THIS CASE
ARE SEALED.
ARE SEALED. BUT INVESTIGATORS GAVE CINDY A
SNEAK PEEK.
SNEAK PEEK. >> IT WAS A FAMILI AL DNA.
THEY FOUND HIS COUSIN AND THEN
GRANDPARENTS.
GRANDPARENTS. >> THEY GOT AN INDICATION THAT
JAMES ALLEN NEIL MAY BE THE
SUSPECT.
SUSPECT.
SUSPECT. >> WHEN SOMEBODY'S NAME KIND OF
POPS UP OUT OF THE BLUE AS A
PERSON WHO'S COMMITTED A CRIME,
A HEINOUS CRIME --
>> Reporter: NEIL CAUGHT THE
ATTENTION OF HELMER.
>> WE'RE DEFINITELY GOING TO
TAKE A LOOK AT THAT.
>> Reporter: A LOOK WHETHER HE
COULD BE RESPONSIBLE OF ANY ONE
OF THE 161 MURDERS IN THAT
JURISDICTION OR ANY OF THE
OTHER THOUSANDS OF OTHER COLD
CASES IN COLORADO.
>> I HAVE ABSOLUTE HOPE WE'LL
SOLVE EVERY ONE OF THEM.
AND THE REASON WHY IS WE DON'T
KNOW WHAT THE NEXT DEVELOPMENT
IN SCIENCE IS GOING TO BE.
>> HOO RAY FOR TECHNOLOGY.
THAT'S PRETTY AMAZING.
>> Reporter: DNA CAN BREAK A
CASE.
CASE.
CASE. AND
CASE. AND ONCE YOU BREAK THAT CASE,
YOU CAN BREAK A LOT OF CASES.
YOU CAN SOLVE A LOT OF COLD
CASES.
CASES.
CASES. THINGS THAT HAPPEN TOTALLY OUT
OF THE BLUE THAT WE NEVER
EXPECTED HAVE GIVEN US NEW
HOPE.
HOPE.
HOPE. >>
HOPE. >> Reporter: MY DESIRE IS THAT
IT GIVES HOPE TO OTHER
FAMILIES.
FAMILIES.
FAMILIES. IT'S A LONG TIME COMING.
BUT I BELIEVE GOD'S TIMING IS
PERFECT.
PERFECT.
PERFECT. >> THIS MIXTURE OF CRIMINAL
INVESTIGATION AND FAMILY
GENEOLOGY IS LEADING TO ARREST
ACROSS THE COUNTRY.
WE FOUND OLD MURDER CASES, SOME
AS FAR BACK AS THE 1960s SOLVED
IN 13 STATES