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William Hasley, Screenwriter Who Co-Wrote Book With Caitlyn Jenner, Dies on Hollywood Hiking Trail

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CitrixNews Staff
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William Hasley, Screenwriter Who Co-Wrote Book With Caitlyn Jenner, Dies on Hollywood Hiking Trail
Jun 9, 2026 12:59pm PT William Hasley, Screenwriter Who Co-Wrote Book With Caitlyn Jenner, Dies on Hollywood Hiking Trail

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Pat Saperstein

Deputy Editor

@Variety_PatS See All WEST HOLLYWOOD, CA - JULY 8: Actress Robin Riker and husband William Hasley attend Showtime's "Broadway on Showtime" Film Series - "As Is" Screening on July 8, 1986 at the DGa Theatre in West Hollywood, California. (Photo by Ron Galella, Ltd./Ron Galella Collection via Getty Images) The late William Hasley, left, with his former wife Robin Riker in 1986. Ron Galella Collection via Getty

William Hasley, a writer who worked on TV series including “The Smurfs” and co-wrote an inspirational book with Caitlyn Jenner, has been identified as the hiker who was found dead on Hollywood’s popular Runyon Canyon trail on Saturday evening. He was 78.

Hasley was previously married to “The Bold and the Beautiful” actress Robin Riker. His death comes just two weeks after a man in his 40s died of cardiac arrest on the same trail.

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Originally reported by Variety