Negotiations began immediately with prison warden H. H. Husbands and W. J. Estelle Jr., Director of the Texas Department of Corrections. The Texas Rangers, the Department of Public Safety, and the FBI arrived to assist as the media descended on Huntsville. When one of the hostages suggested a moving structure of chalkboards padded with law books to absorb bullets, Carrasco agreed to the plan. The captors entered their escape pod with four hostages and secured eight others to the moving barricade. While the target was en route to an armored car, Estelle had his team blast it with fire hoses. In a violent end to the standoff, Carrasco committed suicide, one of his two accomplices was killed (the other later executed), and two hostages were killed by their captors.
One of the longest hostage-taking sieges in the history of the United States took place in Texas's Huntsville State Prison in the summer of 1974. Federico Carrasco, a former drug boss, and two other inmates used smuggled guns to take eleven civilian prison workers hostage in the prison library. They planned to escape using the hostages as shields in a moving barricade, but W. J. Estelle Jr., Director of the Texas Department of Corrections, had his team blast the barricade with water hoses. In a violent end to the standoff, Carrasco committed suicide, one of his two accomplices was killed (the other later executed), and two hostages were murdered by their captors.