Traps are looking suspect...maybe I'm giving him too much benefit of the doubt assuming he has great resources to bulk up like that in a 5 year span.
You also have to take into account of two things.
1. He's 6'5. Its incredibly hard to gain enough muscle on a large frame like that and actually "look" big. The fact that he actually looks big at 6'5 means he gained an unnatural amount of lean mass in an unrealistic time span with respect to the sport he trains for, which brings me to my next point;
2. He had the conditioning of a bodybuilder. Its really hard to get and keep that kind of mass when you're participating in a cardio intensive sport like MMA
Basically, everyone had their suspicions, it was only a matter of time before he got caught.