A Sonoma man who drove off Highway 12 and hit a tree, killing himself and his passenger, was drunk at the time of the crash, the CHP reported.
Justin Perkins, 24, had a blood alcohol level of more than .08, CHP Officer Jaret Paulson said. "Alcohol was a factor in the collision," Paulson said.
His passenger in the 11:50 p.m. crash on Feb. 24 was Morgan Marcy, 28, of Sonoma.
Perkins was nearing Glen Ellen when he lost control of his 1995 Dodge Neon on a sweeping curve east of Trinity Road and hit a tree, the CHP said.
Perkins, who wasn't wearing a seat belt, was partially ejected from the car. Marcy was wearing a seat belt.
CHP investigators initially said speed could be a factor in why he lost control. Toxicology tests showed that he was intoxicated, Paulson said Monday.
Marcy graduated from Santa Rosa Junior College in 2011 and was working at a Napa winery, according to her obituary.