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TV Writer William Hasley, 78, Found Dead Near Runyon Canyon

6/10/2026

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Summary

Story summary

William Hasley, 78, was found dead near Runyon Canyon in Los Angeles on June 6, 2026, with cause of death pending.
He co-wrote *Finding the Champion Within* with Caitlyn Jenner for Simon & Schuster.
His early television credits included writing for *The Smurfs* and *Fat Albert and the Cosby Kids*.
He taught a UCLA class, was married to actress Robin Riker, and volunteered in soup kitchens, environmental causes, and sports events.

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Story summary

William Hasley, 78, was found dead near Runyon Canyon in Los Angeles on June 6, 2026, with cause of death pending.
He co-wrote *Finding the Champion Within* with Caitlyn Jenner for Simon & Schuster.
His early television credits included writing for *The Smurfs* and *Fat Albert and the Cosby Kids*.
He taught a UCLA class, was married to actress Robin Riker, and volunteered in soup kitchens, environmental causes, and sports events.