Mr. Cochran said today that he might call a mystery witness to the stand on Thursday, around the time that Ms. Clark hopes to wrap things up.

Ramsey thinking he'd pulled off the perfect crime only to encounter every bad guy's worst nightmare: a mystery witness.

When a mystery witness is called into the courtroom, Fallon takes one look at her and agrees that the witness is her mother.

It's not a good thing when a lawyer is given to meetings with mystery witnesses to bolster his case.

The mystery witness is Blake's ex-wife, Alexis.

"Was Melanie Hessler your mystery witness?"

Something about Carmen or Kulesza or Morelli... or maybe the mystery witness.

Who was the mystery witness?

She loves scenes full of high drama - a drawn-out, operatic death, the reading of a will in a lawyer's office, the entrance of a mystery witness in a trial.

It is Tannery's mystery witness, Tanya Jordan, Kalistas mother.