I’ve bolded the interesting parts of the story, which is from USA Today.
A psychiatric outpatient opened fire Thursday inside a psychiatrist’s office at a hospital near Philadelphia, killing his caseworker and slightly wounding the doctor, who shot the gunman with his personal firearm, authorities said.
The suspect, Richard Plotts, of Upper Darby, Pa., was reported in critical condition after the shooting at 2:20 p.m. in an office at the Mercy Wellness Center of Mercy Fitzgerald Hospital in Darby, Delaware County District Attorney Jack Whelan said at an evening news conference.
The unidentified 52-year-old doctor shot Plotts three times and suffered a graze wound when the suspect returned fire, Whelan said at an evening news conference. Two guns were recovered.
[...]Whelan said Plotts, who has a history of unspecified psychiatric problems, and his caseworker arrived at the doctor’s third-floor office about 2 p.m., Whalen said. Soon after, another staffer heard a loud argument and opened the door to find the suspect pointing a gun at the doctor. The worker then closed the door and call 911.
Minutes later, gunfire erupted.
[...]Plotts, described as being in his mid-30s, was in surgery at the Hospital at the University of Pennsylvania. He was shot twice in the torso and once in an arm.
[...]A sign tells visitors to the wellness center to check weapons at the front, a medical technician told The Philadelphia Inquirer.
Hospital policy allows only on-duty law enforcement officers to carry weapons on campus, a Mercy Health System spokeswoman told the Associated Press.
So there was a “gun-free zone” sign. That didn’t stop the crazy person from coming in with a gun. And thankfully, it didn’t stop the DOCTOR from having a licensed concealed-carry firearm. But what if the doctor didn’t have a firearm? Well, then he’d be dead. The police would NEVER have got there in time to save him. And who knows how many more people the crazy person would have shot? I think this story shows the reason why law-abiding people need to own and carry firearms. When seconds count, the police are just minutes away.