John, it was posted on the bjj forum that Elite Instinct have confirmed to you that Dave Hagon claims to have received his black belt from Won Choi. If true, do you now have everything you need to help this reporter?
fokket - Won Choi goes by his Korean name in the US when marketing himself as a tae kwon do expert and his Americanized name Mickey "Bad Boy" Choi in Korea when marketing himself as a bjj expert.