A motorcyclist who was killed in a collision with another car in Berkeley on Wednesday has been identified by the Alameda County coroner's bureau as 32-year-old Stephan Jarjisian.
Jarjisian, a Berkeley resident, had been driving at the intersection of Shattuck Avenue and Rose Street when the collision was reported at 3:11 p.m., police said.
Bystanders tried to help Jarjisian and responding officers attempted to resuscitate him with CPR, according to police.
He was transported to a hospital where he was later pronounced dead.
Police are investigating the cause of the collision. The driver of the other vehicle stopped and is cooperating with officers.
Drugs and alcohol are not believed to be factors in the collision, police said.