Apparently, it is not B.J. anymore, it is Byron.
"I wanted to be known as Byron in college because I was making the next step of my life, but everybody, friends and coaches, just knew me as B.J. so it didn’t catch on...I don’t know, maybe they just forgot, or maybe they had just gotten used to the name they’ve always called me. Now I can try again. Another new step, new transition, and I’d like to be known as Byron.”
It's too bad some of his rookie money now has to be used to change the tatoos on his forearms.