Also in this playlist...
This transcript is automatically generated
Turning now to one of the nation's most infamous serial killers more than three decades after John Wayne Gacy was convicted of killing 33 people investigators say.
They may now be able to identify even more victims the sheriff's -- discovered a vial of his -- And then it was entered into the FBI's DNA database so.
How likely is it now that police will be able to reopen some of the cold cases linked to gacy and could it apply to some other cold cases let's bring in.
Forensic pathologist Fox News contributor doctor Michael Baden and Mary -- -- -- she's a former FBI profiler author of dangerous instincts.
Explain how I -- I automatically assumed.
That a serial killer's DNA would be in the DNA database.
And and it wasn't.
-- that the DNA database -- which is federally.
Governed by the FBI and contains millions of inputs.
The each state sets its own standards on what to submit to the it.
To the database to code it's -- -- CO DI ES.
And at the time that.
Jaycee was killing people 1978.
Was before DNA was found which is.
Them back in nineteen 79.
And 1989 with ten years later.
So that not nothing was put in the database at that time now -- putting it in database now it may be able to connect him.
Murders that had been reported more unsolved.
It's not likely to identify.
Some of the identified -- that have already been found in his house.
Yeah very -- if it.
A lot of people always thought he was responsible.
For many more murders than those attributed to him what say you.
I would definitely agree with that and the reason I say that is having interviewed.
A number of these serial killers and worked on hundreds of serial murder cases we know there's a period of time.
Before they get into kind of the -- -- for lack of a better term.
There are murders where they're practicing.
They're trying to figure out what kind of weapon they like to use what type of victims say want to access what they want to do the victim.
And those murders proceed the actual series and so having said that.
That becomes very important for investigators to know those early those earlier.
-- homicides and it's also a mess for people to think that serial killers only kill and one way.
Or they only select certain victims so their can be.
Women as victims there can be females.
As victims are men is victims that back at 77 they never thought about.
Doctor Baden what do you think is going to be resulted.
From all of this -- I think -- actually.
That unsolved murders.
From the early seventies a time that gates who was killing people -- -- 28 were found in his house.
A -- in his past five and a nearby.
River would -- 33.
If he killed other people that are unsolved.
-- -- police put into the code is.
When it was -- set up in that is in the ninety's then they might be hit with the unit this semen or.
Or saliva on a cigarette or red hair for -- found that the scene.
And that's what they can match to -- sees a blood and maybe they'll identify a few other of murders that have remained unsolved so far.
-- -- -- -- -- We -- a lot of unconnected dots be put together here.
On the gacy case I would say at least some.
I hope all of them but that's unrealistic so at least some.
And and I think this whole strategy will hopefully be used in other serial murder cases because we know.
When you're talking to these people you're doing the investigation they don't tell us everything they simply don't and they take it to their grave.
Mary -- O'Toole -- doctor Michael Baden is always.
Thank you very much thank you very who --
Filter by section