Park Circle Jiu Jitsu with Joseph Coker Have you ever watched a UFC fight where grown men batter each other to submission? Well, that's not what this is about. Joseph Coker (pictured in the photo above) is the founder and instructor for Cool Afterschool, the premiere provider of Jiu Jitsu classes for children in the Charleston, SC area. With over 11 locations in the Charleston area, Joseph has been...