Former child actor star Evan Ellingson, best known for his recurring role on "CSI: Miami" and the film "My Sister's Keeper," has reportedly passed away at the age of 35, according to People magazine.

His death was confirmed by the coroner's division of the San Bernadino County Sheriff's Department, which found him dead in the bedroom of a residence in Fontana, California Sunday morning.

No official cause of death was given for Ellingson, and an autopsy was scheduled to be performed this week to determine exactly how he died.

Struggled with a drug addiction problem

TMZ, which was the first to report Ellingson's death, revealed that the former star child actor's father said his son had been found dead at a sober-living home where he had been residing while dealing with a drug addiction problem he had suffered from for years.

That revelation, plus a separate formal statement from the family, suggests that Ellingson may have passed away as a result of a drug overdose, though, as noted, no official cause of death has been determined as of yet.

The "Today" show reported that Ellingson's family said in a statement, "Our family is heartbroken by the sudden passing of our beloved son, brother, uncle and friend, Evan. Evan was one of the most caring individuals who loved Jesus with all his heart. He had a sweet, child-like spirit with a smile that could light up a room. He was always thinking of others and wanted to use his own struggles with addiction to help people find hope."

"Evan was three years sober and often shared his journey of recovery through speaking engagements and ministry," the family continued. "He was passionate about pointing individuals to resources for help and only recently relapsed after being prescribed opioids following a dental procedure."

"While in the end, he fell in his earthly battle with addiction, he was able to choose Jesus as his Lord and Savior and receive eternal life with Him," the family added. "We already miss Evan and cherish every moment of joy, laughter, and love that he brought to us and so many others."

Decade-long career as a child actor

According to his IMDb page, Ellingson was born in Los Angeles, California in July 1988 and grew up in La Verne along with three brothers, where he was discovered at a skate park by the Vans Company at age 10 and shortly thereafter launched his career in the entertainment industry.

He ultimately had 19 acting credits to his name from 2001 to 2010, which included his recurring appearances in 18 episodes of "CSI: Miami" as Kyle Harmon, the son of David Caruso's main character Lt. Horatio Craine.

Ellingson also famously portrayed the son of Cameron Diaz's character in the 2009 film "My Sister's Keeper," was the nephew of Keifer Sutherland's Jack Bauer character in 10 episodes of the 2007 season of "24," and made repeat appearances in the 2001 sitcom "Titus" and the 2004-05 sitcom "Complete Savages."

IMDb noted that Ellingson had a daughter named Brooklynn born in 2008 -- the same year that his brother Austin died from a drug overdose.

No normal childhood for the actor

In a 2009 interview with The Philippine Star, Ellingson opened up a bit about his life as a child actor just prior to walking away from that career one year later, in which he shared how supportive his family had been but acknowledged that he didn't have the opportunity to enjoy a normal childhood.

"I never had the same (childhood) experience with my friends. I never had more time with them," he recalled. "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."