Thanks to Allyson Beutke DeVito for granting permissions to share this important documentary online, the full documentary of Behind Closed Doors: The Dark Legacy of the Johns Committee is now online: https://ufdc.ufl.edu/AA00067837/00001/
From the catalog information for the documentary:
The Legislative Investigation Committee probed unpopular groups in Florida during the 1950’s and 60’s. Also known as the Johns Committee, investigators questioned civil rights activists, suspected Communists and homosexuals. Includes live interviews with Art Copleston, Merril Mushroom, and Julia Penelope; and a narrative about the first Johns Committee target, Sigmund Diettrich (who is now deceased), by former colleagues.
From the website for the documentary:
Many people are familiar with the McCarthy hearings but do not realize that Florida had its own committee designed to weed out communism and homosexual activity.