 Complete the following phrase:  Collins longest running series and arguably his best known work is his Nathan Heller series. Heller is a Chicago private investigator who gets involved in famous crimes and meets famous people of the 1930s and 1940s, including Orson Welles, Frank Nitti, and Sally Rand. The first novel in this historical fiction series, True Detective, won the 1984 Shamus Award for Best P.I. Hardcover from the Private Eye Writers of America. Collins won his second Shamus in 1992 for the Heller novel Stolen Away, an account of the 