Allan May is an authority on the history of organized crime in the United States and has a personal library of over 800 books on the subject. May's earlier works are Mob Stories (2001) and Gangland Gotham (2009). Recent publications include Welcome to the Jungle Inn (2011), Crimetown U.S.A. (2013), and The Sly-Fanner Murders (2014).
May got his start with Jerry Capeci, the dean of mob writers, at Capeci’s “Gangland News” website. He was the main organized crime writer for Court TV’s website CrimeLibrary.com in the early 2000s, and was one of the main contributors to both AmericanMafia.com and CrimeMagazine.com. He has taught several courses on organized crime at Cuyahoga Community College and lectures at libraries throughout Northeast Ohio. He has appeared in documentaries and has been interviewed on both radio and television.