Good afternoon, everyone, and welcome to Police Off the Cuff, Real Crime Stories. I'm your host,

retired NYPD Sergeant Bill Cannon, a 27-year veteran of the NYPD. You know, it's been argued through

the entirety of the Idaho Four case, the case against this killer, who you see up on the screen, B.K.,

that what was the most important piece of evidence in this case?

And undoubtedly, I think we all know, unless you live in a bubble,

the most important piece of evidence was undoubtedly the DNA on the button of the knife sheath.

And on this thumbnail you see up on the screen,

that is Kristen Middleman of Arthurum Labs,

and that is Stacey Chapin, the mother of Ethan Chapin,

one of the victims in the Idaho four case.

And of course, this evidence was what you would compare.

I guess you would say if you, so strong that I would call it a smoking gun.

It was that strong of the evidence.

And many people denied that fact, but it was so powerful, such powerful

evidence, because you're linking this man right here, a mass killer, BK, with science. And science

is putting him on the scene of a quadruple murder.

Science, that people would have argued this case till the end of time if they did not have that

type of evidence. But they did have that type of evidence. And smoking gun. And we had Kristen Middleman from Arthram Labs and Stacey

Chapin were at CrimeCon and they sat down together and they were interviewed by News Nation

and they discuss this DNA on the knife sheet and how absolutely important it was to this investigation.

I have information that could help someone heal, that could help someone feel safe or secure,

and to not be able to give it to them is difficult.

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