Originally Posted by TheSquealer

You lose weight with diet and nutrition first. Not "punching"

All of this, his experience there and so on was explained in full detail with the testimony and cross examination of the gym owner. You said you've heard and read everything, so forgive me for talking to you as if you hadn't.

Also, it was not a "MMA Gym", "Martial Arts Gym" etc. Though that is a big part of its focus. It was a full gym with full weight facilities. Not just a facility with a single focus. Zimmerman also went there to do cardio. That doesn't mean he's a trained fighter.
http://www.kogym.com/personal-fitness-training.htm