The Last Laugh

S2 E10: Kill 'em with laughter. That's just what Bonnie Valin did when she murdered her husband with nitrous oxide or "laughing gas". Believing Bonnie's pleas of innocence, Dr. Sloan succeeds in getting her acquitted in court, and later discovers that he's been a pawn in a complicated set-up. Bonnie's the killer alright, and Sloan's evidence set her free. Meanwhile, coming to Amanda's rescue, Jack schemes to get her life savings back from a greedy con-artist. Sloan, racked with guilt, struggles to find a way to put Bonnie where she belongs--behind bars!