In 2014, Duke Roufus – trainer for UFC fighter Anthony Pettis – put on a kickboxing event in his hometown of Milwaukee, WI. The event wasn’t illegal, but it wasn’t exactly well regulated either, and tragically, a young kickboxer died.
Dennis Munson Jr. was the kickboxer’s name, and he trained at Roufus’ gym. His family is suing Roufus.
Here’s a local news report on the story: