ATLANTIC CITY — Police found a 17-year-old with a gunshot wound on Caspian Avenue early Wednesday morning. Officers responded to the 800 block of Caspian Avenue at about 2 a.m. after the city’s ShotSpotter gunshot-detection system alerted them to possible gunfire. The victim, whom police did not identify, had a non-life-threatening gunshot wound. He was taken to AtlantiCare Regional Medical Center, City Campus. The investigation was being led by the Atlantic City Police Department’s Violent Crimes Unit.