Defense attorney Joel Brodsky was invited to discuss his controversial cases at the Chicago Cigar Club on Monday night.
Naturally everyone wanted to know about his most famous client.
Peterson has pleaded not guilty to murdering his third wife Kathleen Savio and on Tuesday Brodsky starts proving his case.
"I'm going to tell the story that I think inevitably leads to the proof that Drew Peterson is innocent of having anything to do with Kathy Savio's death," he said.
Brodsky predicts the trial will run about four weeks.