>>> benitez had talked about vergara and vergara's name certainly did pique our interest because we knew him. everybody called him henryco as benitez. >> at the time earl was killed, vergara had been arrested for traffic offenses. nothing like murder. benitez's criminal record was much the same, though he had been charged with a burglary about a year before earl's murder, but those charges were dismissed. murder charges were a whole new ball game. >> he said he was involved but edson wouldn't say that he hit earl with the gun. he placed it all on vergara. >> we did a search warrant and located vergara. initially vergara denied having any involvement. >> what we need to do is i need you to tell me what happened. >> what happened for what? >> when earl got hurt. >> i don't know. he was -- >> but we do know, that's the thing. >> for an hour they questioned vergara and for an hour he said he wasn't even there. ultimately, it only ends one way. >> you're under arrest for murder. >> okay. >> there's one other key detail investigators notice before he's taken away. >> can i see the bottom of your shoe, buddy? i think those ar