And then it happens
Pittsburgh police say a man wearing a bulletproof vest opened fire on officers during a domestic disturbance call, killing three of them.
Police chief Nate Harper says the motive for Saturday's shooting isn't clear.
Friends say the gunman recently had been upset about losing his job and that he feared the Obama administration was poised to ban guns.
>> In this video, Richard Poplawski's friend says that he was concerned over "Zionist control of the government" which is a key belief of the extremist militia right.