Motive revealed in Pennsylvania hospital shooting that left 1 officer dead, 5 injured

Anguish and anger at the very recent loss of a loved one apparently spurred on the man who would target the intensive care unit at a Pennsylvania hospital Saturday morning, a senior law enforcement official briefed on the investigation told ABC News.

One officer was killed and at least five others were shot in the hostage situation that unfolded at a hospital in York County, according to state officials.

The suspect, Diogenes Archangel-Ortiz, entered UPMC Memorial in West Manchester Township with a semi-automatic handgun and zip ties at around 10:30 a.m. He then went to the ICU and took several hospital staff hostage, officials said at a press conference Saturday afternoon.

Ortiz shot a hospital doctor, nurse and custodian, all of whom are now stable, officials said. Three police officers were shot during the incident and one died.

Read more: ABC News