Police identify massacre gunmanBy staff and correspondents in the US April 18, 2007 01:39am Worst campus shooting incident in US history Domestic incident may have preceeded killing spree Witnesses describe panic, horror THE deadliest school shooting in US history was carried out by a 23-year-old loner from South Korea who was studying for an English major, university and police officials said today. Police identified Cho Seung-Hui, a legal US resident, as the shooter at Virginia Tech University and said he may have acted alone in killing 32 people before committing suicide yesterday. Cho was an undergraduate student in his senior year majoring in English, said campus police chief Wendell Flinchum. He lived on campus at Harper Hall dormitory and his residence was established in Centreville, Virginia outside Washington, police said. He was a 23-year-old South Korean here in the US as a resident alien, Mr Flinchum said. Virginia Tech University Charles Steger told ABC television earlier that two people may have been involved in the shooting, but police later said it was reasonable to assume that Cho acted alone. Larry Hincker, associate vice president for university relations, said officials had difficulty getting information about the gunman. He was a loner, he said. Steve Flaherty, superintendent of Virginia state police, said a 9mm handgun and a 22mm handgun had been recovered. Supt Flaherty said ballistics tests indicated one of the weapons was used in both shootings but declined to say they had both been carried out by Cho. It certainly is reasonable for us to assume that Cho was the shooter in both places, but we don't have the evidence to take us there at this particular point in time, he said. Student Erin Sheehan, who survived after the gunman barged into her German class and fired repeatedly, told CNN the attacker was of Asian appearance, wearing a short-sleeved tan shirt and black ammunition vest. He was dressed almost like a Boy Scout, ...