the man is 34-year-old bari bariq wiltz. he's being held on fighting with police and trying to grab an officer's weapon. >>> scary scene yesterday in gilbert, arizona, outside of phoenix. five people are dead in what is being called a quadruple murder-suicide. sources have i.d.ed the gunman as j.t. ready. dead are his girlfriend, her 22-year-old girlfriend, her boyfriend and the 2-year-old child. j.t. ready is a known white supreme cyst a supremacist and neo-nazi. he looked for illegal immigrants and drug cartel members crossing the border. oftentimes these guys are called ready's rangers. these guys are heavily armed. when i was working a few years ago as a part of an in-depth series with neo-nazis in the united states and abroad, i went along on one of these patrols with j.t. ready. >> we have assault weapons, grenades, a lot of equipment. we are prepared to use deadly force. >> let's say that does happen, are you trying to detain them? >> we'll kill them. we will kill the narco-terrorists. >> he's referring to drug cartel