The disgruntled doctor who opened fire in a Bronx hospital had vowed to seek revenge on his ex-colleagues, the New York Daily News reports. Dr. Henry Bello, 45, worked at Bronx-Lebanon Hospital for six months, ending in February 2015, when he was let go after being accused of sexual harassment. "We fired him because he was kind of crazy,” Dr. Maureen Kwankam, told the News. “He promised to come back and kill us then.” Bello made good on that threat on Friday afternoon, opening fire with an AR-15 assault rifle in crowded corridors as terrified patients and staff screamed and sought cover. When the rampage was over, one female doctor lay dead and five hospital staffers were seriously wounded. A patient shot in the leg was in stable condition.
Bello, who sneaked in the rifle under his lab coat, tried to set fire to a nurse's station before setting himself on fire and fatally shooting himself in the head, per the New York Times. Kwankam says Bello was hunting for a specific staffer, whom she didn't name. When the shots rang out, Kwankam raced from the 16th floor, where Bello began shooting, to the 9th floor, hid in a room, and locked the door. Bello, moving between floors, was soon "jiggling the handle," she says. When Bello was hired, administrators didn't know that he had been charged with sex abuse after attacking a woman on a Manhattan street in 2004. Bello was also busted in October 2009, but records in that case are sealed, per the New York Post.