The 18-year-old gunman who killed five people in a crowded Utah shopping mall was a Bosnian Muslim refugee who was prepared to kill many more, say investigators. An off-duty police officer having an early Valentine's Day dinner with his wife was credited today with cornering Sulejmen Talovic, exchanging fire with him until other officers arrived to shoot and kill the gunman. The trench-coated teenager wanted to "to kill a large number of people" and probably would have killed many more if not for the off-duty officer, Police Chief Chris Burbank said. A friend said Talovic was from the war-torn country...