Introducing Our New Black Belt
4月に 27, 2013, on what would have been his grandfather and namesake’s 71st birthday, Ken “トレイ” Zimmerman III became the first black belt in the Zimmerman Self-Defense System under his father Ken Zimmerman Jr. “トレイ” began studying martial arts shortly before his fifth birthday. “トレイ” has trained in Taekwondo, 柔道, Brazilian Jiu-Jitsu and Gojo Shroei Weapons System. His goals
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