Here's the story as told me by the guy i know from the gym. Dennis just finished doing a competition diet. ( dunno which competition) Ate so much and took a plane. (dunno going where) he said that Dennis retain so much water in his body and pressure from the plane cabin was too much for his body to handle because of the water retention. They check on him and found out that there's not much oxygen from his body and he went coma. That's all i heard. i Dunno if there's any truth about this. But knowing my source, i always see him talking to Dennis everytime i workout.
If there's any truth about this. I hope that he get well soon!