As of Thursday, all injured UPMC staff have been released from the hospital and will be paid their full wages until they recover, according to a statement.

Investigators are continuing to piece together the sequence of events at UPMC Memorial Hospital that led to the deaths of a West York Borough police officer and the 49-year-old who held ICU staff hostage.

Lester Mendoza, who specializes in pulmonary critical care, was present when the perpetrator was informed about his loved one's death.