It looks like Indianapolis Colts star receiver Marvin Harrison is off the hook – at least for now – in a shooting that allegedly involved his rare, semi-automatic, foreign-made weapon. By the sound of Philadelphia District Attorney Lynne M. Abraham Tuesday morning, it is unlikely that the case of the April 29 shooting, which left convicted felon Dwight Dixon and three other people wounded at Harrison’s Philadelphia car wash, will ever be resolved. Why? Because Harrison and the victims, were largely uncooperative and provided “mutually exclusive” and contradictory accounts, Abraham said. “We’re not foolish,” Abraham told reporters at a news conference in her Center City office. “But knowing what happened and proving what happened are two different things. Do I prove my case? With these witnesses? I don’t think so.” From the beginning, Harrison has denied any involvement in Dixon’s shooting. He also denied that his unusual, Belgian, 5.7-mm, semiautomatic pistol has ever fired one of its armor-piercing bullets. “We’re confident of our police ballistics report,” Abraham said, stressing that the bullet that struck Dixon, 32, came from Harrison’s gun. She said that the 36-year-old Harrison had beefed with Dixon, who he had refused to allow into his nearby bar. “At this point, we have nobody,” Abraham said. “We don’t have anybody who will say they saw anybody fire a gun at anyone.”