Matt ThorntonMatt Thornton has been teaching functional martial arts for more than thirty years and holds a 5th degree black belt in Brazilian Jiu-Jitsu. His organization, Straight Blast Gym, has more than seventy locations worldwide and has produced champion MMA fighters as well as world-class self-defense and law enforcement instructors. He lives with his wife Salome and their five children in Portland, Oregon. Read More Read Less