Alleged stalking suspect ambushed Pennsylvania police officers, killing 3 | Gun Violence News

Police detectives were attempting to arrest 24-year-old suspect on suspicion of stalking his ex-partner when he opened fire with AR-15-type rifle.

A man who ambushed five Pennsylvania police officers this week, killing three of them, is a suspected stalker who opened fire with an assault-style rifle, according to a local prosecutor.

Officers from the North York County Regional Police Department and York County…