I tried to research him to find out if he is the real deal.  He seems to have the credentials to back up his story, but for example, it is claimed that he is a whistleblower, but try though I may, I cannot find what he blew he whistle on.  I still have that suspicion that he is a showboat like someone you see in those stolen valor videos.  I don't want to disparage the dude, but I don't just believe someone because other seem to put faith in him, I like to verify his chops myself. The reason I am suspicious is he just seem to preen a bit to much in his martial arts videos.  I have always believed that a truey accomplished man, on with real strength, is the quite reserved man that never acts like he is anything special. And I know it's probably fake news, but one article I read said he was fired because he formed his own religion and got caught tricking women into having sex with him because he told them they would be healed if they did. I don't want to be a doubter, but I think the way to be a believer is to try and prove  that he is a faker, and by failing come to believe he is real deal, same way that the some of the best Christian apologist are former atheist that started out to prove Christianity was a lie, but in the effort to prove a lie, ended up proving the truth, and became believers.