Here's some really amazing footage of Freddie King live at the Travis County Jail in Austin, Texas. Filmmaker Ric Sternberg sets the scene.
"Freddie was in Austin to play at the Armadillo World Headquarters. Richard Halpin (Jail Arts & Education Project) got Freddie and his brother Bennie to play for the inmates at the Travis Co. Jail. The prisoners loved it. So did the musicians. I shot it with help from William McLellan & Linda Evans. It was shot with a single tube camera and recorded on a 1/2" reel-reel portapack. It is funky old video but a record of a terrific performance and selfless act by the late great artist, Freddie King."