"Deadly Ambush: Gunman's Illegal AR-15 and Community Support for Fallen Officers"

The shooter who killed two Central New York police officers used parts to build his own illegal AR-15 assault weapon, avoiding the need for permits and background checks. The gun had a protruding pistol grip and a 40-round magazine, making it illegal in New York state. The shooter, Christopher R. Murphy, purchased a lower barrel receiver legally in 2019 and added more parts to the gun. Another AR-15 rifle was found in his home, and deputies are investigating its legality. This incident highlights the issue of modifying guns to circumvent regulations, as seen in a previous shooting in Buffalo.