Authorities are investigating after a man was shot to death in Atlantic City on Saturday night. Atlantic City Police received a ShotSpotter alert for several gunshots on the 100 block of North Virginia Avenue shortly after 7:15 p.m., according to the Atlantic County Prosecutor’s Office. Officers arrived at the scene to find Christian Hunter, 32, of Atlantic City, unresponsive on the sidewalk with multiple gunshot wounds. Hunter was pronounced dead at AtlantiCare Medical Center, city division, the prosecutor’s office reported. The shooting remains under investigation, officials said, and no arr…