Jennifer vanished sometime in the overnight hours.

Right now there is no trace.

Investigators say evidence lead them to believe that she's dead.

Stick my nose back on the trail. That's all I can do.

This is already gone.

Already gone.

Already.

Already. All ready. All right.

On February 20th, 2016, Detective Jeremy Ogden sits across from a woman, who he will later call the most difficult interview of his career.

Her name is Kelly Cochran.

She's calm, even playful. And then,

without hesitation, she tells him how she killed her husband. Quote, I thought about it every day since October 14th. From the time he shot Chris, I wanted him dead. He took the only good thing I had in my life.

I still hate him. And yes, it was revenge.

Kelly says she gave Jason Cochran heroin, potent, raw, heroin, and then she watched him grow weak.

When the moment came, she pressed her hands over his mouth and nose.

Quote, he was vomiting while I was doing it.

Can you imagine what it's like to drown in your own fluids?

Probably pretty painful.

Didn't take long.

Detective Ogden listens.

It confirms what the autopsy would say, homicide by asphyxia,

complicated by heroin intoxication. The detective has suspected as much for months, but hearing it from Kelly is something else. There is no remorse in her voice. Before all of this, Kelly and Jason had shared an

...