Caitlyn Jenner's ghostwriter William Hasley found dead near LA's Runyon Canyon trail

By Alex Tanzer, 
updated on June 9, 2026

William Hasley, the 78-year-old screenwriter who ghostwrote Caitlyn Jenner's 1996 self-help book, was found dead near Los Angeles's Runyon Canyon last Saturday evening. The Los Angeles Fire Department said rescuers reached Hasley at about 7:05 p.m. but could not save him. Officials pronounced him dead at the scene.

The Los Angeles County Medical Examiner's Office has not released a cause of death. It was not clear how Hasley died, and the office has deferred any official determination. Temperatures in the Los Angeles area that evening were cool, in the mid-to-low 60s.

Hasley's death drew attention in part because of his long Hollywood résumé and his personal connection to Jenner, the former Olympic athlete. But the unanswered questions surrounding the circumstances, and the silence from officials, leave a gap that the public deserves to see closed.

A career in Hollywood's writing rooms

Hasley spent decades writing screenplays for Universal Pictures, Warner Brothers, and 20th Century Fox. He also taught screenwriting at UCLA Extension, where his instructor profile encouraged students to "develop your own distinct style into a concise and creative screenplay for today's ever-changing marketplace."

His most widely known project was "Finding the Champion Within," the Simon & Schuster book he penned for Jenner. The 1996 title aimed to use a 10-step program to "reboot" readers' lives. Hasley described on his personal biography page how the collaboration began: he and Jenner became "fast friends" while Hasley was working on an Olympics-related project, and Jenner later commissioned him to write the book.

Hasley was also the former husband of actress Robin Riker, who played Kelly Hall on the Showtime sitcom "Brothers" in the 1980s and later appeared as Beth Logan on "The Bold and the Beautiful."

Last hours and a neighbor's account

An unnamed neighbor who lived near Hasley's home, itself located near Runyon Canyon, told reporters about seeing Hasley earlier that same Saturday. The neighbor's account was brief and somber.

"I just saw him on Saturday carrying groceries. It's very sad he had to die all alone like that."

The timeline is stark. A man seen carrying groceries during the day was found unresponsive on a hiking trail by evening. The LAFD dispatched air rescuers, who were lowered to Hasley's location. An LAFD spokesperson described the response effort plainly:

"LAFD Air Operations lowered rescuers to the patient, and medical treatment was administered."

That treatment was not enough. The details of what happened between the grocery run and the 7:05 p.m. discovery remain unknown.

In a political environment where sudden departures and shocking developments seem to arrive daily, a quiet death on a Los Angeles hiking trail might not command national headlines for long. But the lack of answers from the Medical Examiner's Office means the story is not yet finished.

What the biography reveals

Hasley's personal website painted a picture of a man who stayed active well into his later years. His biography noted that he enjoyed riding horses "with the infamous Hole in the Wall Gang," played in celebrity golf tournaments, and competed in the Showbiz Softball League.

He was also described as an environmentalist who spent time "fighting City Hall over an environmental issue," writing articles, volunteering in soup kitchens, and speaking to youth organizations. The portrait is one of a man engaged with his community, not someone who had withdrawn from public life.

UCLA Extension listed Hasley as a current instructor. The California Post reported reaching out to UCLA for comment but did not indicate receiving a response. The outlet also contacted representatives for Jenner. Neither party's response, if any, was included.

Unanswered questions

Several basic facts remain unresolved. What agency or official formally identified Hasley as the hiker found dead? What was his exact location on or near the Runyon Canyon trail? Was foul play suspected or ruled out? The Medical Examiner's deferral leaves all of these open.

Runyon Canyon is one of Los Angeles's most popular hiking spots, drawing tourists and locals alike. A death on the trail, particularly one involving a 78-year-old man found alone in the evening, raises practical questions about trail safety, emergency response times, and whether the city's resources are adequate for the volume of hikers the canyon attracts.

These are the kinds of questions local officials should be answering promptly, not deferring indefinitely. Families and communities deserve timely information when someone dies on public land. In a city where political reversals grab attention and bureaucratic delays are routine, the quiet cases, the ones without powerful advocates pushing for answers, are the ones most likely to fall through the cracks.

A Hollywood life, a solitary death

Hasley's career touched some of the biggest names and studios in the entertainment industry. He wrote for three major studios. He collaborated with one of the most famous athletes of the twentieth century. He taught the next generation of screenwriters at one of the country's most recognized universities.

And yet, as his neighbor observed, he died alone on a trail near his home on a cool Saturday evening in Los Angeles.

The contrast between a life lived publicly, in Hollywood writing rooms, on celebrity golf courses, in soup kitchens, and a death met in solitude on a hillside trail is hard to ignore. It is a reminder that fame and professional accomplishment do not insulate anyone from the most basic vulnerabilities of age and circumstance.

In a city that has seen major legal developments and consequential resignations dominate the news cycle, the death of a 78-year-old writer on a hiking trail may not command sustained coverage. That makes the Medical Examiner's silence all the more worth noting.

When a man dies alone on public land and the authorities have nothing to say about how or why, the least the public can expect is a straight answer, delivered without unnecessary delay. William Hasley's family, friends, and former students deserve that much.

About Alex Tanzer

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