The gunman who opened fire in a New York City skyscraper, killing four people, including an off-duty cop, bought his $1,400 gun from his boss at a Las Vegas casino where he had worked, according to officials.
Shane Tamura, a 27-year-old from Nevada, had driven cross-country over the weekend and then walked into a Midtown Manhattan building, which houses NFL offices, on Monday, where he fatally shot people in the lobby and on the 33rd floor before dying of a self-inflicted gunshot wound to the chest.
