Fmr HPD captain charged with holding repairman at gunpoint in bogus voter-fraud scheme Published article HOUSTON - A former Houston police captain has been arrested after running a man off a road and holding him at gunpoint to prove a bogus voter fraud conspiracy. Mark Anthony Aguirre was arrested by Houston Police on Tuesday and charged with Aggravated Assault with a Deadly Weapon, a second-degree felony punishable by up to 20 years in prison. The Harris County District Attorney's office says Aguirre, 63, went to authorities with pre-election claims that a massive voter fraud scheme was underway in Harris County. According to a court document, the former captain told police shortly after the Oct. 19 incident, that he was part of a group of private citizens called, “Liberty Center,” who were conducting a civilian investigation into the alleged ballot scheme.