By MEAD GRUVER / AP February 24, 2025 1:15 AM EST A man who took hostages in a Pennsylvania hospital during a shooting that killed a police officer and wounded five other people highlights the rising violence against U.S. healthcare workers and the challenge of protecting them. Diogenes Archangel-Ortiz, 49, carried a pistol and zip ties into the intensive care unit at UPMC Memorial Hospital in southern Pennsylvania’s York County and took staff members hostage Saturday before he was killed in a