Federal and International Two Plead Guilty to Involvement in Aryan Brotherhood of Texas Racketeering Murder by Gary Kopycinski on August 21, 2013 Gary Kopycinski Author More in Federal and International: Rep. Kelly Introduces Two Bills to Hold Gun Industry Accountable February 11, 2026 Park Forest Man Sentenced to 48 Years in Prison for Sexually Exploiting a Minor January 30, 2026 Judge Orders Kilmar Armando Abrego Garcia be Released from ICE Custody ‘Immediately’ December 11, 2025 Washington, DC–(ENEWSPF)–August 21, 2013. An Aryan Brotherhood of Texas (ABT) gang member and an ABT associate have pleaded guilty to charges related to the May 2008 murder of Mark Davis Byrd Sr. in Atascosa County, Texas.