The 30-for-30 certainly makes Geiger to be the villain. I know Mo had his issues, but I believe the contention with Geiger, right or wrong, was a catalyst for Mo's downward spiral. Had he been able to complete his college career, or win his NFL appeal, he likely wouldn't have ended up in prison. He would have been in the right football shape and state of mind through college, setting records and establishing a legacy, and probably drafted with an opportunity to make a name for himself as a professional.
Regardless of who the finger is pointed to, it's a tragic situation. The fact that somebody with such talent and promise that was never truly realized is difficult to imagine. You only get one shot, and his was lost as soon as it started.