View Comments In a Tweet, Hind's County Sheriff's Office officials said Robert Caston turned himself in at the agency Friday afternoon. Deputies announced Thursday that Caston was wanted on one count of murder relating to the shooting that happened March 21. Christopher Moncure, 30, was killed after a shootout occurred in the club's parking lot around 2:30 a.m. Investigators believe Moncure was an innocent bystander caught in the crossfire. Three men have already been arrested and charged in the case. Johnnie Donaldson Jr., 24, was arrested Wednesday on a murder charge, officials said. Frederius Wash, 21, was also arrested with assistance from the U.S. Marshals Service Thursday, according to a report.