UPDATE: Gunman at Bronx-Lebanon Hospital was Dr. Henry Bello, a former employee; hid rifle under a lab coat.
— Fox5NY (@fox5ny) June 30, 2017
From heavy.com: “Dr. Henry Bello was named as the gunman who opened fire on other doctors at Bronx’s Lebanon Hospital after allegedly hiding a rifle under a white lab coast. As many as six people have been reported shot. Bello, a former employee of the hospital, was reportedly “clad in all black” under the white coat. What significance that has is anyone’s guess.
The Daily News calls him a disgruntled former employee:
Police sources identified the shooter as Dr. Henry Bello, 35. He used an M-16 type rifle. He was listed as a family physician. He is believed to have killed himself after the shooting.