Suspect in killing of 3 Pennsylvania officers was a 24-year-old being sought on stalking charges Updated 15 mins ago A law enforcement source says 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. The charges against Matthew James Ruth had been filed Wednesday, the same day police returned to a farm property in rural York County to find him. The official who identified Ruth spoke to The Associated Press on condition of anonymity because they weren’t authorized to discuss the ongoing investigation. The killings Wednesday matched the state’s deadliest day for law enforcement this century, when three officers were ambushed in 2009 by a domestic violence suspect.

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