Jim Morrell

Further testing showed it wasn't from seminal fluid after all.

And worse, it came from the lab worker who did the testing.

Still, as much as the defense discredits the early investigation...

This is a story of loyalty and betrayal.

And the prosecution's case relies less on forensic evidence than on the testimony of Lally's friends or former friends.

Do you know the defendant?

Yes, sir.

I do.

And they can't seem to bare their souls fast enough, offering chilling testimony about how Anthony and Tom used to talk about Marina Calabro.

The one friend not called to testify, Jim Morrell, whose undercover taping unraveled the entire plot.

Instead, the state produces a new key witness.

someone who was actually there.

Jason Weir, betrayed by Jim Morrell back in 2002, he is now in turn betraying his friends.

In exchange for his testimony, he agreed to plead to manslaughter and take a 10-year sentence.

Jason tells the jurors that he heard Tom and Anthony plot the crime.

He claims he never took it seriously.

Until that moment, he and Marina stood in the kitchen and Tom walked in with a frying pan.

Marina kept struggling, Jason says, and then Tom grabbed a tea kettle.

What was she doing at that point?

When it was over, Jason says, and Anthony had come inside, Lally kept his cool.