Diagnosis: Murder

Season 2, Episode 9

Episode Title: The Last Laugh (1)

Air Date: 1994-11-11

Overview:

A plastic surgeon dies due to an overdose of laughing gas... with no shortage of suspects. Mark campaigns furiously to exonerate Bonnie Valin, the victim's wife, while Steve makes a solid case against her. Meanwhile, Amanda's new electronic checking service is less than effective.