The Norteño/Sureño rivalry dates back decades. Just one week after the homicide, an alleged Norteño was arrested at the school in possession of a pistol, and his friend was shot and wounded by suspected Sureños at Cambridge Park in Concord after arranging to purchase a gun from them. Since Ochoa was killed, Concord police said they saw an uptick of gang fights at Ygnacio Valley High School, where Tellez-Moctezuma had been allegedly involved in an after-school fight just a month before the homicide. Police linked the slaying to a longtime gang rivalry, describing Ochoa as a longtime Sureño member and Tellez-Moctezuma as a Norteño who’d been a suspect in other gang-related violence. CONCORD - The suspect in an April homicide here has been identified in court records as a teenaged suspected gang member who allegedly vowed revenge after he was stabbed numerous times in an attempted murder last year.Ĭoncord resident Anthony Tellez-Moctezuma, 17, has been charged in juvenile court with murdering 30-year-old Salvador Ochoa in an April 16 shooting.

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