Anne-Marie Green

And every once in a while, they would have DJ night and it would all be...

you know, 15, 16, 14 year olds.

And everyone felt safe because it was just a bunch of kids.

But, you know, to talk about the case, when Kelly's mother, Iris, realizes that Kelly has not returned home, Iris and her husband, they call the police.

And then the police tell them that because Kelly hasn't been missing for at least 24 hours, they're not going to take a report.

So, in fact, it wasn't until Teresa Fusco disappears that Kelly's case actually gets a second look.

This is nearly six months after Kelly went missing.

Teresa's body is discovered near Long Island Railroad tracks.

She's been beaten.

She's been strangled.

She's been raped.

And police start to look at the possible links between the two cases.

That is when they zero in on John Kogan.

He's a 21-year-old landscaper.

Detectives say that he dated Kelly for about a week or so.

And in the course of your reporting, I'm curious about whether you learned anything else about him.

Well, that is what struck me about this confession, the remarkable level of detail.

And so you can't help but to think, who would make this up?

John Kogut, Dennis Halstead, and then John Restivo, they're all charged with Teresa's murder.

All three of them plead not guilty.