A massive police manhunt was underway after a gunman killed three people and critically injured two others at a granite supplier in a suburban Maryland business park on Wednesday. The gunman then fled the scene and is believed to have shot another man in Wilmington, Delaware. The suspect has been identified as Radee Labeeb Prince, 37. He is thought to be operating alone and is described as... Еще 'armed and dangerous'. The suspect is believed to be a worker at Advanced Granite Solutions which is based at the Maryland business park. According to Harford County Sheriff Jeffrey R. Gahler, officers responded to reports of a shooting at 8:58 am and were on the scene within four minutes.