On July 6th, 2011 Rener Gracie taught his Back Mount Mastery Seminar at RGJJ Team HK. Also in attendance were Red/Black Belt Master Relson Gracie, BJJ Black Belts Chris & Mike Onzuka (O2 Martial Arts Academy), Rylan Lizares (Gracie Technics), & WWE Diva Eve Torres.    Thank you to everyone that came to the seminar to support Rener. I hope you all drew out your "trees". Hope we can get him…