Shortly before retiring Bill took a part in the Goodman Theater radio performance, in front of a live audience, of the play "Never the Sinner", the story of the Leopold/Loeb senseless killing in Chicago, of a young boy.

His performance received this review from the ChicagoTribune:

"William Larson as defense attorney Clarence Darrow turns in a terrific performance. Most memorable is his impassioned closing speech that saves Leopold & Loeb's lives, if not their humanity."