Crime may not pay, but Paul Drexler has discovered that becoming an expert on crime does. Introduced to true crime when his uncle’s car was used in a New Jersey mob killing, Drexler is now a writer, video game developer, founder of the Crooks Tour of San Francisco and arguably San Francisco’s primary authority on the city’s colorful underworld history. This week, Drexler joins GrottoPod host Larry Rosen to talk about his upcoming book, tentatively titled San Francisco Notorious: True Tales of Passion, Crime and Murder. He also talks about CrimeCon, his lifelong fascination with outlaws, and shares some of his favorite San Francisco crime stories.