Fred Carrasco was an infamous Texas Narco, the Pablo Escobar of his time in the 1970s.

Popular ballads in Mexico celebrated his ruthless reputation and tales of violence.

Carrasco was infamously known as “The Mexican Connection” in the heroin trade.

In July 1974, Carrasco became the central figure in the longest prison siege in United States history.

He masterminded the smuggling of guns into the Huntsville Walls Unit, Texas' first and oldest prison, and took teachers and librarians hostage.

Over eleven tense days, Carrasco and two accomplices threatened a bloodbath if their demands for escape were not met.

This is the story of the Huntsville siege, a saga of desperation, manipulation, and deadly confrontation that still resonates half a century later.