Motive

Investigation Fails To Uncover Motive For Fatal I-680 Shooting Of CHP OfficerAuthorities say they will never know what drove a man to fatally shoot a California Highway Patrol officer during a freeway traffic stop.
Vallejo Police Investigate Mysterious Confrontation Which Led To Two DeadVallejo police have arrested a 65-year-old man on murder charges after a standoff Wednesday night that lasted about 45 minutes.
San Francisco Man Charged With Attempted Murder Of Cable Car Conductor32-year-old George Luong is charged with boarding an out-of-service cable car near Mason and Jackson streets and stabbing the 55-year-old conductor repeatedly in the chest, the arm and the face.

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