Deborah L. Bock-Leader, 38, update producer on the NBC series “Unsolved Mysteries,” died Dec. 9 in Santa Monica, Calif., of cancer.

Bock-Leader spent the past four years at “Mysteries” producer Cosgrove/Meurer Prods., working as a researcher and producer on the show. She also worked on the HBO documentary “Murder Or Mercy” and, before that, freelanced as a segment producer on various series. She also was a researcher for “Ripley’s Believe It Or Not” and “That’s Incredible.”

Survived by her husband, film and tv editor Robert M. Leader, her parents and sister.

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