Hiker who died in Runyon Canyon ID'd as Hollywood screenwriter, pal of Caitlyn Jenner
Key takeaways
- Authorities have identified the hiker who suffered a fatal medical emergency in Runyon Canyon as 78-year-old screenwriter William Hasley.
- Hasley was a veteran TV writer who taught screenwriting classes at UCLA Extension.
- County medical examiner released Hasley’s identity Tuesday but had yet to rule on his cause of death.
Screenwriter William Hasley with actor Robin Riker in 1986. (Ron Galella Collection via Getty Images) By Clara Harter Staff Writer Follow June 9, 2026 7:41 PM PT 3 min Click here to listen to this article Share via Close extra sharing options Email Facebook X Linked In Threads Reddit Whats App Copy Link URL Copied! Print 0:00 0:00 1x This is read by an automated voice. Please report any issues or inconsistencies here.
Authorities have identified the hiker who suffered a fatal medical emergency in Runyon Canyon as 78-year-old screenwriter William Hasley.
Hasley was a veteran TV writer who taught screenwriting classes at UCLA Extension. He was also a friend of Caitlyn Jenner and helped write the former athlete’s motivational book “Finding the Champion Within,” according to his biography.