George Zimmerman, center, sits during his bond hearing with his attorney Mark O'Mara, left, in a Seminole County courtroom on June 29, 2012 in Sanford, Florida. Zimmerman is charged with second degree murder in the shooting death of Trayvon Martin. POOL / POOL

George Zimmerman enters the courtroom as he appears before Circuit Judge Kenneth R. Lester, Jr. Friday, June 29, 2012, during a bond hearing at the Seminole County Criminal Justice Center in Sanford, Fla. Zimmerman is charged with second-degree murder in the shooting of Trayvon Martin. Joe Burbank / AP