WASHINGTON — The gunman who killed three officers and wounded two more in Pennsylvania before he was killed by police was a 24-year-old being sought on stalking and trespassing charges, according to court documents and law enforcement.

The charges against Matthew James Ruth were filed Wednesday, when police returned to a farm in rural York County to find him.

The law enforcement official who identified Ruth as the shooting suspect spoke to The Associated Press on condition of anonymity because they weren’t authorized to discuss the ongoing investigation.

Police had been to the scene the day before, then returned Wednesday afternoon to search for Ruth, who was also charged with loitering and prowling at night.

The killings Wednesday matched the state’s deadliest day for law enforcement

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