CHICAGO (AP) — About 100 prospective jurors have crowded into a courtroom for the first phase of jury selection in the trial of a white Chicago police officer charged in the killing of black teenager Laquan McDonald.

The judge on Wednesday read to the jury pool the charges against Jason Van Dyke: first-degree murder, aggravated battery and official misconduct.

The jurors will fill out questionnaires. The judge sealed them, but the prospective jurors will certainly be asked how closely they have followed media coverage of the 2014 shooting and whether they have seen the dashcam video that shows Van Dyke shoot the 17-year-old 16 times.

Van Dyke has pleaded not guilty. His attorneys say he feared for his life.

The video of the shooting sparked massive protests and prompted federal and local investigations.