I've written several posts about MISSION: IMPOSSIBLE, but one of the most fascinating stories related to that television series comes from writer Stephen Bowie on his essential Classic TV History Blog. Patrick J. White, whose THE COMPLETE MISSION: IMPOSSIBLE DOSSIER is one of the best and most thorough books ever written about the production of a television series, neglected to tell this story, though it's possible he either didn't know about it or was afraid to bring it up in his interviews.
The story concerns Laurence Heath, a terrific writer responsible for some of MISSION's best teleplays, including the two-part "The Controllers" and "The Mercenaries," which ranks high among my favorite episodes. He was also MISSION's story consultant and, later, producer. He also fulfilled those functions on series like 21 BEACON STREET, BONANZA, THE MAGICIAN, DYNASTY, and MURDER, SHE WROTE.
In 1963, a year in which he managed a single teleplay for SAM BENEDICT, Heath murdered his wife. And, as Bowie notes, seven years later, Heath was producing MISSION: IMPOSSIBLE.
You can read Bowie's engrossing true-crime account here.