ANTIOCH -- A man who was killed after running onto Highway 4 and being hit by an ambulance Sunday night is believed to have committed suicide, authorities said Monday.
The man, a 62-year-old Brentwood resident, reportedly pulled his own car over to the shoulder and ran out into the roadway on eastbound Highway 4 at the Oakley Curve in Antioch at about 11:30 p.m. Sunday, according to the California Highway Patrol.
He was apparently struck by an ambulance, and officers responding to the scene found the man lying in the roadway. He was declared dead a short time later.
No one else was reported injured in the crash.
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Contact Sean Maher at 925-943-8013. Follow him at Twitter.com/OneSeanMaher.