Treat Williams’ Cause Of Death Revealed As Driver Charged In Fatal Accident

Treat Williams/Hallmark Channel/Instagram

Treat Williams’ cause of death has been revealed 2 months after fatal accident.

Treat Williams, an American actor, was killed in a motorcycle accident on June 12, 2023. His official cause of death has just been released to the public as the driver of the vehicle responsible for the accident was officially charged.


Treat Williams had an impressive television and movie resume at the time of his death.

Treat Williams gained popularity for his roles in the 1979 films “Hair ” and “1941.” Williams was also well-known for his role as Dr. Andy Brown on The WB’s “Everwood.” He has been nominated for two Screen Actors Guild Awards, three Golden Globes, a Primetime Emmy, two Satellite Awards, and an Independent Spirit Award.

Treat Williams appeared in numerous movies throughout his career including “Dead Heat,” “Miss Congeniality 2,” and “127 Hours.” Williams has made appearances in many well-known TV shows including Hallmark’s “Chesapeake Shores” as Mick O’Brien, and had reoccurring roles in “White Collar,” “Blue Bloods,” and “Chicago Fire.” Williams also appeared as Danny, the lead role in the original Broadway run of Grease in 1972.

Treat Williams’ cause of death has officially been revealed.

Ryan Koss, the man responsible for the accident resulting in Williams’ death, has been charged with “grossly negligent operation with death.” Koss was driving a vehicle that “turned into the path of Mr. Williams motorcycle” resulting in Williams suffering “critical injuries in the crash and subsequently pronounced dead” after being taken to a nearby hospital. The cause of death was determined to be “severe trauma and blood loss as a result of the crash,” according to the medical examiner.

Ryan Koss has been compliant with authorities and was processed and released. His arraignment is scheduled for September 25, 2023.

Williams passed away at 71 years old on June 12, 2023, and his family released a statement following his death.

“Treat was full of love for his family, for his life and for his craft, and was truly at the top of his game in all of it. It is all so shocking right now, but please know that Treat was dearly and deeply loved and respected by his family and everyone who knew him.”