A 911 call from Marymount Hospital in Garfield Heights recorded both the gunshot and anxiety inside the ER.
And it's not the first time Ohio hospitals have come under fire—gunshots have killed four people and wounded a fifth since 2010.
And in many cases, it's nurses who become victims.
Sue is a nurse who was violently attacked by a patient on the psychiatric wing at St. Vincent Charity Hospital in Cleveland. She asked newsnet5.com not to use her last name.
"He walked into his room, turned around and slugged me in the face," says Sue, who was repeatedly kicked in the head with steel toe boots worn by the patient.
Sue said while the hospital is now a leader in safety, she insists "not much has changed in the 10 years since" at many hospitals.
"I heard from other people, even from hospital management—you work in a psychiatric facility, what do you expect?" says Sue, who remains convinced hospital violence is underreported.
A leading Ohio nurses union agrees.
The Ohio Nurses Association says nurses are often fearful of reporting violence.
"Insubordination, or the facility saying they're being insubordinate because they are not taking care of the patient at that time when the violent act takes place against them, "says ONA executive Tiffany Bukoffsky.
"It's a fear of being disciplined," she says.
Across Ohio we found an estimated 520 cases of violent injuries over a two-year period—340 nurses victims of assault.