Nadia PflaumRocky Varela I ran into Rocky Varela in the parking lot of scionLAB, the auto-sponsored event space in the alley behind 19th and Locust. His Bob Berdella shirt just begged for an explanation, which, of course, is the point. Varela, it turns out, designed the shirt to promote a movie about the Kansas City killer, Berdella, set to premiere September 10th at Screenland. His friends Bill Taft and Paul South, co-producers of the film, needed help with design work, so Varela jumped o