reporter: this is deeply creepy stuff. >> absolutely. >> reporter: the person who knew him best was marcus hunteraccomplice first arrested with jason scott. but marcus wasn't talking. investigators wondereded was he afraid of jason. another former co-conspirator was telling investigators jason was no one to cross. >> talk to him -- >> these guys would say, if i got into a fight, jason wouldn't fight back. but two weeks later he would come back and burn my house down. >> he was crazy. >> reporter: three weeks after his king for a day deal jason scott was still walking the streets. and investigators knew enough about him to worry for their own safety. >> his m. o. was he would specifically go and cut the power to these homes. one night sleeping kind of become aware that all of a sudden the power is off in my house. knowing that jason knew my name and thinking he, figure out where i lived, i actually grabbed my gun and proceeded to tactically clear my house just to make sure that he wasn't the reason for the power being out. as i work my way through the house and into the kitchen, i finally come up