had used a hacksaw to dismember rickerson. the half brother also said matt threatened to kill both him and his wife unless he gave matt his van to run away. >> he told me mr. rickerson -- he thought mr. rickerson owed him back pay. >> matt took the van to texas, where he abandoned it and then crossed into mexico. it wasn't long before he ran into trouble in that country, killing a man outside of a bar, and then serving nine years in a mexican jail. when he was finally extradited to the u.s. to stand trial on rickerson's murder, the court reportedly installed snipers outside just in case he made a run for it. matt also wore electrodes under his suit in court so guards could shock him if he became unruly. his former girlfriend likely