“My Sister's Keeper” Actor Evan Ellingson's Cause of Death Revealed as Accidental Fentanyl Overdose

The 35-year-old actor was found dead on Sunday, Nov. 5

Evan Ellingson's manner of death has been deemed an accident.

The 35-year-old former child star, known for the 2009 movie My Sister's Keeper and his role on CSI: Miami, was found dead Sunday, Nov. 5, inside the bedroom of his residence in Fontana, California.

An autopsy was then scheduled for Monday, Nov. 6. The San Bernardino County Sheriff's Department's coroner has since listed Ellingson's manner of death as "Accident," as of Tuesday, Nov. 28.

A spokesperson for the coroner's department tells PEOPLE the cause of death was determined to be an accidental fentanyl overdose.

TMZ previously reported that Ellingson's father told the outlet that the actor struggled with addiction and died in a sober-living home.

Related: Paying Tribute to the Celebrities Who Have Died in 2023

Ellingson hasn't appeared onscreen in over 10 years. He played the son of Cameron Diaz and Jason Patric's characters in My Sister's Keeper, and on CSI: Miami he starred as the son of David Caruso's Lt. Horatio Caine.

Additionally, he was a regular on the television series Complete Savages, which aired 2004 to 2005, and he played the nephew of Kiefer Sutherland's Jack Bauer on 24.

Abigail Breslin, who co-starred with Ellingson as his sister in My Sister's Keeper, paid tribute to him on Instagram, remembering him as "a kind, funny and extremely talented human being."

"Evan was a genuinely thoughtful person who cared so much about turning in the best performance, which he accomplished," she wrote. "Some of his scenes in MSK still give me chills. He was also silly, funny, a prankster, a lover of Red Bull (I hated the smell of Red Bull) and he was energetic and the life of the party."

Breslin, 27, added, "I didn’t keep in touch a lot with him after the film, but he always stayed in my mind as a wonderful and sweet soul, one I am grateful to have crossed paths with. My prayers and condolences are with his family at this difficult time."

The actor was raised in La Verne, California, with three brothers, per his bio on IMDb. He was "discovered at a skate park and was asked to not only skate for the Vans PeeWee team, but to do a commercial for the Vans Company."

Ellingson's "unmistakable charisma and talent" led to him being "asked to do a trilogy of short films playing a character that was written specifically for him," which landed him more roles, his bio added.

He told The Philippine Star in 2009, "I never had the same [childhood] experience with my friends. I never had more time with them. However, my childhood was a cool one. I was busy doing the things I love. I had no regrets because I found my passion for acting early on."

If you or someone you know is struggling with substance abuse, please contact the SAMHSA helpline at 1-800-662-HELP.

For more People news, make sure to sign up for our newsletter!

Read the original article on People.