Arrest of defendant's brother stops trial MIAMI, Oct. 4 (UPI) -- A judge declared a mistrial in a Miami murder case after the defendant's brother, a Florida prison guard, was arrested in the courthouse. Devin Williams, 24, was arrested on the fourth day of the trial, The Miami Herald reported. His brother, Jerron, is charged with killing a woman gunned down during a 2010 block party in the Brownsville section of Miami. Two witnesses complained about Devin Williams. One said he made a threatening gesture after coming to her workplace and another said Williams stared at him during a hallway encounter in the courthouse. The judge declared the mistrial because members of the Williams family began making noise as he was being removed from the courthouse in handcuffs and jurors were being led into the courtroom. Miami-Dade Circuit Judge Lisa Williams said the combination was "the worst possible confluence of circumstances" that had "tainted" the trial. Devin Williams was released on bail Wednesday but must wear an electronic monitoring bracelet.