Associated Press 10:50 a.m. August 10, 2009 CHELTENHAM, Pa. – A Philadelphia man accused of shooting Chargers rookie Curtis Brinkley has turned himself in to authorities. Investigators in Montgomery County say 23-year-old Anthony Peterson turned himself in Saturday. He is charged with attempted murder, aggravated assault and other charges. Montgomery County District Attorney Risa Ferman says the July 10 shooting was a case of mistaken identity. Ferman says Peterson was romantically involved with Brinkley's sister and thought he was shooting at a rival. Brinkley was treated for gunshot wounds at a hospital and released. A preliminary hearing is set for Aug. 19. Brinkley signed with the Chargers as a rookie free agent. He rushed for 1,164 yards last year at Syracuse.