Brennan, 37, was pronounced dead at Hoag Hospital in Newport Beach, according to the Orange County coroner. The Costa Mesa Police Department told CNN that Brennan was taken to the hospital due to an overdose.

Brennan, who grew up in Orange County and played at Mater Dei High and Saddleback College, dealt with drug and alcohol issues and died after an overdose that included fentanyl. He was 37.