Jose Leonides-Marquez

Deadly force

Jose Leonides-Marquez was the primary aggressor against two officers responding to a routine noise complaint at a house in Dale City, police said. A group of men knocked down Officer Andrew B. Cornell on the porch, beat him on the head and shoulders and grabbed for his gun belt while trying to strangle him. The other officer, Richmond O. Appau, under attack in the front yard, radioed an officer-in-distress call. Cornell pulled his gun and shot once, killing Leonides.