Longtime Watertown broadcaster Don Egert of KXLG-FM was the college roommate of actor Tom Laughlin, star of the “Billy Jack” movies. Laughlin played football at the University of South Dakota and went on to write, direct and star in all four of the “Billy Jack” films, earnest tales of a tightly wound, half-Cherokee Vietnam veteran who protests Native Americans, wild horses and progressive ideals against attacks. None of the movies were critically acclaimed, but they played a big part in changing the way movies reached American audiences. Laughlin died last Thursday in California at the age of 82. Egert talked about the life of Tom Laughlin.