Join us this week as we talk with Ed Nordskog, senior arson investigator for the Los Angeles County Sheriff’s Department, about his new book, “Fire Raisers, Freaks and Fiends: Obsessive Arsonists in the California Foothills.” We’ll also visit with historian Marc Chevalier, LAVA’s 2014 Visionary of the Year, to discuss one of his more recent obsessions, Hollywood’s late, great Schwab’s Pharmacy.