Jon been in trouble the entire USADA era. I can't say he wasn't/isn't badass, but there's no way to say he was ever a clean athlete.

I saw someone reference that his brothers were pro athletes, which is true, but they're both pro athletes who have been busted for PEDs. *edit - chandler jones was busted for synthetic weed, not PEDs*

It sucks, cuz Jon had one of the more epic runs in UFC history. His skill and creativity are still as elite as it gets.