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Record-setting college football quarterback Colt Brennan’s death four months ago was caused by an accidental drug overdose, authorities said Saturday.

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Brennan, 37, who starred at the University of Hawaii and was a Heisman Trophy finalist in 2007, suffered an accidental overdose, caused by the combination of fentanyl, methamphetamine, amphetamine, and ethanol, People reported, citing a spokesperson for the Orange County Sheriff’s Department,

Brennan died May 10 at Hoag Hospital in Newport Beach, California.

Terry Brennan told the Star-Advertiser in Honolulu that his son was in his fifth month at a rehabilitation center as a patient.

Brennan’s side-armed throwing delivery helped put Hawaii football on the map from 2005 to 2007. He was named the Western Athletic Conference Player of the Year in 2007 when the Warriors won the conference title, Hawaii News Now reported.

Brennan threw for 131 career touchdowns at Hawaii, including 58 in 2006. He passed for 5,549 yards in 2006. Brennan still holds the NCAA career completion percentage (70.4%) record, KHON reported. He also led Hawaii to a 12-0 regular-season mark in 2007, the year he finished third in the Heisman Trophy voting behind Tim Tebow of Florida and Darren McFadden of Arkansas.

>> Former University of Hawaii QB Colt Brennan dead at 37

Brennan’s 58 touchdowns were an NCAA record until LSU’s Joe Burrow broke the mark in 2019, ESPN reported.

Drafted in the sixth round of the 2007 NFL draft by Washington, injuries prevented Brennan from playing a game in the NFL, ESPN reported.

Brennan suffered severe injuries in 2010 when he was a passenger, along with his then-girlfriend, in a vehicle involved in a head-on collision in Hawaii, the Star-Advertiser reported.

Brennan was also arrested for driving under the influence, ESPN reported. In 2020 he was arrested at a hotel for causing a disturbance while intoxicated and later that year was arrested at his home after police said he was “extremely intoxicated.”

Earlier this week Brennan’s family established a fund to support causes that Colt Brennan held dear.

The Colt Brennan Legacy Fund will support University of Hawaii athletics, youth sports and groups that help people with mental health and addiction, according to Hawaii News Now.