"Ken Zimmerman Jr. is the author of 18 non-fiction books including Gotch vs. Hackenschmidt, Double-Crossing the Gold Dust Trio and Evan ""Strangler"" Lewis. In addition to combat sports history, Ken has written true crime books on St. Louis, Missouri. Ken is a married father of three and grandfather of two, who lives outside St. Louis, Missouri. In addition to his interest in combat sports history, Ken holds rank in three martial arts including a 4th Degree black belt in Taekwondo."