in a separate military killing on saturday in pittsburgh , a man wears a vests mask and shot eight police officers after he had been led into a murderous outburst by an argument with his mothers over a dog . according to parish evidence , joseph poplawski — 23 had recently been dishonourably released from the us marines — had been angry with his mother about the dog masturbating inside their home early on saturday morning when she threatened to vacate him . if the incident escalated , she called the police . by the time a patrol cruiser ended up at after 7am , mr poplawski , 23 , had armed himself with an adult rifle , a long - stick pistol , a pistols and several boxes of bullet .
In Pittsburgh a man shot 3 policemen.