(AP Photo/Mary Altaffer). Police help people cross the street outside the Bronx Lebanon Hospital in New York after a gunman opened fire there on Friday, June 30, 2017. (AP Photo/Mary Altaffer). Police gather outside Bronx Lebanon Hospital in New York after a gunman opened fire and then took his own life there on Friday, June 30, 2017. (AP Photo/Mary Altaffer). Police vehicles converge on Bronx Lebanon Hospital in New York after a gunman opened fire there on Friday, June 30, 2017. (AP Photo/Michael Noble). Those still inside the building peek out the windows after a shooting killing one and wounding six others at Bronx Lebanon Hospital Center Friday, June 30, 2017, in New York. (NBC 4 New York via AP). In this image taken from video provided by WNBC 4 New York, emergency personnel converge on Bronx Lebanon Hospital in New York, after a gunman opened fire there on Friday, June 30, 2017.
By COLLEEN LONG
NEW YORK (AP) – A doctor who appears to have been the target of a former physician who started shooting at a hospital, killing one person and injuring six, said he has no idea why he would have been singled out.
Dr. Kamran Ahmed told the New York Post he wasn’t the only one Dr. Henry Bello had a problem with.
However, "he never argued with me," Ahmed said. "I don’t know why he put my name."
A law enforcement official told The Associated Press that Bello arrived at Bronx Lebanon Hospital in the Bronx on Friday with an assault rifle, which was bought in upstate New York about a week earlier, hidden under his lab coat and asked for a doctor he blamed for his having to resign, but the doctor wasn’t there at the time. The law enforcement official wasn’t authorized to discuss an ongoing investigation and spoke on the condition of anonymity.
Ahmed, who specializes in the early detection and treatment of dementia, said Bello "had a problem with almost everybody, so I’m not the only one. That’s why they fired him, because so many people complained."
Authorities said Bello went to the 16th and 17th floors and started shooting anyway, killing Dr. Tracy Sin-Yee Tam, who, like him, was a family medicine doctor. Hospital officials said that Tam normally worked in one of the hospital’s satellite clinics and was covering a shift in the main hospital as a favor to someone else.
"It makes you think that anything can happen to anybody," said Tam’s neighbor Alena Khaim, who saw Tam’s sister outside the home Friday night overcome with grief, shaking and unable to walk. "She was such a sweet girl. You would never think something like that would happen, but it happened."
Before the shooting, Bello sent an email to the Daily News, blaming colleagues he said forced him to resign two years earlier.
"This hospital terminated my road to a licensure to practice medicine," the email said. "First, I was told it was because I always kept to myself. Then it was because of an altercation with a nurse."
Bello’s former co-workers described a man who was aggressive, loud and threatening. Bello had warned his former colleagues when he was forced out in 2015 that he would return someday to kill them.
"All the time he was a problem," said Dr. David Lazala, who trained Bello.
When Bello was forced out in 2015, he sent Lazala an email blaming him for the dismissal.
Bello died from a self-inflicted gunshot. The six injured people were hospitalized.
Detectives searched the Bronx home where Bello was most recently living and found the box where the gun came from. They later determined it was bought at a gun shop in Schenectady on June 20.
This story has been corrected to show Bello had an assault rifle, not an automatic weapon.
Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.