Published: Mar 30, 2011 8:22 PM EDT
Updated: Mar 30, 2011 5:27 PM EDT

FORT MYERS, Fla.- Accused killer Tyrone Campbell sat quietly in a Lee County courtroom after jury selection for his murder trial wrapped up on Tuesday.

Deputies say he gunned down his ex-girlfriend, Dabrena Walker in 2008.

Walker's family was in the courtroom watching the developments when her brother Corey Daniels walked up the aisle. He looked like he was going to ask a bailiff a question when he jumped over the court barrier and started swinging at Campbell.

Bailiffs were injured in the attack. The judge sentenced Daniels to six months in jail. He also declared a mistrial.

It was all caught on court security cameras.

Campbell will probably not face trial until this summer.