Hospital gunman told patients to leave

Photo: The Canadian Press. All rights reserved.

Police escort hospital staff members and others away from a medical office building in Reno, Nev., on Tuesday, Dec. 17, 2013.  (AP Photo/Scott Sonner).

Newly released 911 tapes paint a scene of panic and terror at a Nevada medical office where dozens of callers hid in bathrooms and exam rooms from a suicidal gunman who killed one doctor and shot another.

One said the gunman told patients to leave or he'd shoot them after he entered the Urology Nevada office in Reno last week. The caller said the man armed with a pistol-grip, 12-gauge shotgun told him he had a vasectomy at the office and it ruined his life.

Other terrified callers included a woman hiding under a desk in an exam room and another who whispered "Oh, my God" as apparent gunshots can be heard in the background.

Police on Tuesday confirmed that the shooter, 51-year-old Alan Oliver Frazier, had been a patient at the facility and had complained about a botched 2010 surgery.