STOCKTON — The San Joaquin County Coroner’s Office on Monday identified the victim of a Saturday morning motorcycle crash in north Stockton as Atif Cavness, 26, of Stockton.Cavness had been traveling northbound on North Pershing Avenue near West Mendocino Avenue, near University of the Pacific, about 10 a.m. when he struck a roadway sign, according to Stockton police.He was transported to an area hospital where he later died from his injuries, police reported.