Judge Debra Nelson has ordered attorneys to refer to prospective jurors by number, and they can't disclose their residential addresses or places of employment. The media can't photograph them. Nelson said this is to protect prospective jurors from public pressure or harassment.

Zimmerman defense attorney Mark O'Mara says it's still possible the trial could move elsewhere.

"Oh, its possible if we can't sit a jury here in Seminole County we'll have to go elsewhere, or we'll have to get a jury from elsewhere", said O'Mara.Zimmerman waived a "stand your ground" pretrial hearing. O'Mara says the former Neighborhood Watch volunteer wants to face a jury of his peers, but O'Mara hasn't ruled out bringing up "stand your ground" at trial.The trial is expected to last four to six weeks.