Saw some posting about the story on the UG and want to check with others from the area. The kid live in Z-hills but I do not know if he trained anywhere or not. In a larger number of the news reports they listed him as an Aspiring Ultimate Fighter but never listed a gym.
://www.myfoxtampabay.com/dpp/news/local/nature_coast/two-different-paths,-one-fatal-fight-072611