FreeRepublic has listed a number of our Martin v Zimmerman research articles for their readers.   Interestingly in one of the comment sections a reader named “cynwoody” presents a consideration.   Could this be the person represented on the image from Trayvon’s big memorial button he was wearing on the night of the shooting?
[…] [O]ne could hazard a guess it’s of St. Skittles’s hero and role model Corey Miller (no relation to the special prosecutor).  Corey is a charming critter:
The above photo was the tiled background picture for Trayvon’s posthumously deleted Twitter account. Corey Miller is doing life without for murdering 16-year-old Steve Thomas, at a Harvey, Louisiana nightclub in 2002. Trayvon’s Twitter handle was NO_LIMIT_NIGGA.   Miller’s record company was No Limit Records.

According to Wikipedia – Corey Miller (born March 9, 1971), better known by his stage name C-Murder, is an American rapper and convicted murderer. C-Murder is the brother of both Master P and Silkk the Shocker, and uncle of rapper-actor Romeo. C-Murder has released eight albums altogether on three different labels, No Limit Records, Tru Records, and Asylum Records. His first platinum album was Life or Death, which was released in 1998. He is currently serving life imprisonment following his conviction for a second degree murder committed in 2002. [The trial began in 2009]  C-Murder used to date R&B singer Monica.