SACRAMENTO, Calif.—A California sheriff’s deputy was killed and another deputy was wounded in a shootout with a suspect who gunned down a K-9 dog before he was fatally shot, authorities said. The gunbattle erupted in Sacramento near a racetrack at the Cal Expo event venue after a vehicle pursuit late Monday, Sacramento County Sheriff Scott Jones said. The deputy who died was identified as Adam Gibson, a six-year veteran of the department, Jones said. “He leaves behind a wife and an infant child,” the sheriff said. The injured deputy was in stable condition, Jones said. Jones said the suspect was a man in his 40s but didn’t release his name. He was identified Tuesday as Robert Stephen Calderon by his mother, Jenny Calderon, who talked to the Sacramento Bee. He had a history of criminal activity, drug use, and mental illness, according to his family and court records. Calderon said …