YORK, Pa. - . The BriefA possible motive for the deadly hospital shooting in York, Pennsylvania, is still unknown.Officials say the suspect had recent contact with the ICU "for a medical purpose."The hospital remained closed to visitors on Sunday.

A gunman who held medical staff hostage before killing a police officer and wounding five others at a hospital in south-central Pennsylvania Saturday is believed to have visited the facility in the days leading up to the incident,

An officer was killed, and six others were injured after a man armed with a pistol and zip ties entered into a Pennsylvania hospital's intensive care unit Saturday afternoon. Police were called to UPMC Memorial Hospital on Innovation Drive and Roosevelt Avenue in York County,