It opened in June 1995 and is one of the largest maximum security units in Texas housing approximately 3600 offenders. It consists of four departments, General Population, Administrative segregation and one of the first "Expansion cell blocks" (High Security) to be built housing some level ones Seg overflow and close custody offenders. It also contains one of Texas's "Safe Keeping Units", which are designed to house prisoners that would be in danger from other inmates.[6]
A former inmate, a homosexual African-American named Roderick Johnson, reported that he was forced into sexual slavery by prisoners at the Allred Unit after he arrived there in September 2000. Johnson reported that prisoners forced him to go by the name "Coco" and that he was forced to submit to anal sex and oral sex.[8] Johnson said that Allred authorities denied his pleas for safekeeping until he contacted the American Civil Liberties Union.[9] After Johnson left the prison, he filed a lawsuit against the prison authorities. In September 2004 a federal appeals court allowed Johnson's civil rights lawsuit to go to trial.[8] On October 18, 2005, a federal jury rejected all of Johnson's claims, finding that he produced no evidence of rape and had lied in his testimony.[10]
On August 13, 2007, Edward Brooks, 52, who is serving a life sentence for an aggravated robbery, broke out shortly after 3 pm, according to the Wichita Falls Times Record News. Brooks was authorized to work in the unit without supervision. He pulled a visiting soft-drink vendor from her black Dodge car, then sped through the front gate, according to Assistant Warden Tommy Norwood. The getaway car ran out of gasoline in Burkburnett. Officers spotted him and took him into custody within an hour of his escape.[11]
Rigoberto Vasquez Hernandez – Perpetrator of a 2013 triple homicide outside of a nightclub in Dallas where he shot three people point blank[13]
Johnnie Dee Allen Miller – Murdered a man in the alley behind his home after an argument about a box spring left in an alleyway. Miller's son, Michael, was also tried in Howard's murder, but was found not guilty.[14]
Julius Mullins – Murdered a beloved teacher and mother of four who had been kind and helpful to him, six months after a break-up with her daughter[15][16]
^"Sheet Number 1." City of Wichita Falls. Retrieved on September 22, 2010. - "Sheet Number 2." City of Wichita Falls. Retrieved on September 22, 2010. - "Sheet Number 9." City of Wichita Falls. Retrieved on September 22, 2010. - "Sheet Number 10." City of Wichita Falls. Retrieved on September 22, 2010.
^"Offender Information Detail". Texas Department of Criminal Justice. Archived from the original on June 22, 2011. Retrieved September 22, 2010. TDCJ Number 01110642, SID Number 04236244