The highly publicized murder trial of former Sangamon County Deputy Sean Grayson began this week, centered around the fatal shooting of Sonya Massey. Jury selection commenced, with 12 jurors selected on the first day. Grayson faces charges that have drawn national attention, with legal arguments expected to focus on whether the use of deadly force was justified. Local authorities are preparing for large crowds and have announced traffic and parking changes in downtown Peoria during the trial. Protests and rallies in support of Massey have taken place as the trial unfolds.