An nice article through this link: http://highschool.rivals.com/content.asp?CID=884733
As you may recall Derrick died in an auto accident several years ago. I will never forget when he got the opportunity to sub for Cornelius Bennet (can't remember which game but it was biggie). Derrick was so hyped up to hit someone that when the opposing back stepped out of bounds (some 4 or 5 feet), Derrick blasted him. He got the penalty of course but Stallings was laughing as he chewed on Derrick as he returned to the bench after the play.
I have his KC jersey that he autographed with a closing "Roll Tide" exclamation. It is framed in my Bama room (read bar).