LOS ANGELES —
Early Thursday in the Riverside County city of Corona, Dorner shot at two LAPD officers who had been dispatched to protect a possible target of Dorner's, police said. One officer's head was grazed by a bullet; the other was unharmed.
Minutes later, Dorner used a rifle to ambush two Riverside officers, killing one and seriously wounding another, authorities said. The slain officer was identified as Michael Crain, 34. The other officer's identity was not released to protect his family.
Abdollah reported from Los Angeles. Associated Press writer Elliot Spagat contributed to this report from San Diego.