In 2014, the real Bernie Tiede was released from prison after his lifetime sentence was reduced to time served (15 years). One of the conditions of his release was that he had to live in a garage apartment at the home of Richard Linklater, the director of the movie that was an account of his crime.
There are several scenes that show Bernie (Jack Black) in rehearsals for different community theater musicals. He sings the duet "I've Never Been in Love Before", which ends the first act of Guys and Dolls; he also sings "Seventy-six Trombones" from The Music Man.
Appears as one of the 5 deadbeat dads in the 'hand on a hardbody' competition. He's the one wearing a red shirt who attempts to run when the police arrive. In the newspaper article, his picture is the last one on the top row, farthest to the right.