Season 8, Episode 4 By Reason of Insanity
First Aired: November 2, 2000
A former med student, who studied under Mark and who suffers from schizophrenia, is arrested for murder when he's discovered outside of the dead man's house with blood on him and the murder weapon in his backpack. But Mark doesn't believe the man is guilty and sets out to prove it. Mark: Dick Van Dyke.
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- Premiered: October 29, 1993
- Rating: TV-PG
- Premise: Dr. Mark Sloan dabbles in detective work to help the L.A. police department in this hit for Dick Van Dyke, who first played the sleuth on an episode of 'Jake and the Fatman' in 1991, and then in three TV-movies. (more)