He was definitely on roids, but I doubt much more than the average MMA fighter at the time
Eh, probably not, most of fighters back there could at least pass those Nevada AC tests.
Instead, he provided some shady sample in December 2011, and fled to Netherlands.
Then he was explaining, on a hearing before the commission that he had to do it, cause him mum was ill. It was pretty hilarious, I believe it was being streamed live.
He was granted the license anyway, on a condition that he will have to undergo "random" test somewhere in May/April.
Despite knowing about this "random" test, he tried to flee Vegas after UFC 146 press conference, after having learned that they'll be tested right there.
It was, again, pretty damn funny.
He really had to be on some potent shit 24/7/31.