State police officers shot an 18-year-old man who was waving a gun in the air early Wednesday night in a Hamilton County park. Cory Michael Tucker was flown to an Indianapolis hospital in critical condition after being shot by an officer at about 1 a.m. The trouble started at about 10 p.m. Tuesday when police patrolling Lafayette Trace Park tried to check on a parked vehicle. Tucker, they say, emerged from the car with a handgun and ran. After a three-hour standoff, Tucker fired a shot in the air and waved his gun in an “erratic manner,” police said. Tucker was reportedly despondent over a recent breakup and had made suicidal threats.