After Rockson died a year later , Rickson took a young Casey under his wing and Casey became a standout athlete on the competitive jiu - jitsu scene .
Rockson is the late son of MMA and jiu - jitsu legend Rickson Gracie .
After son died a year later , Rickson Gracie took a young Casey under Rickson Gracie 's wing and Casey became a standout athlete on the competitive jiu - jitsu scene .
Rockson is the late son of MMA and jiu - jitsu legend Rickson Gracie .