SAN ANTONIO — A San Antonio police officer writing out a traffic ticket to a motorist was shot to death in his squad car Sunday outside police headquarters by another driver who pulled up from behind, authorities said.
San Antonio Police Chief William McManus said officials were searching for an unidentified suspect. A motive is not known.
The officer was identified as Detective Benjamin Marconi, 50, a 20-year veteran of the force.
McManus said the suspect had not been caught Sunday night. He said he doesn’t believe the man has any relationship to the original motorist who was pulled over, and no motive has been identified.
‘‘We consider this suspect to be extremely dangerous and a clear threat to law enforcement officers and the public,’’ said McManus.
McManus said Marconi had pulled over a vehicle and while he was inside his squad car writing a ticket, a vehicle pulled up behind him.
He said the driver of that vehicle got out, walked up to the officer’s driver-side window and shot the officer in the head.