Potential jurors have arrived at an Ohio courthouse in the murder trial of a white former university police officer charged with killing an unarmed black man during a traffic stop for a missing front license plate.

A large pool of potential jurors reported Tuesday morning to the Hamilton County Courthouse for orientation sessions and to fill out 25-page questionnaires that will be studied by the defense and prosecutors before they start questioning candidates in court Oct. 31.

Twenty-six-year-old Ray Tensing has pleaded not guilty to charges of murder and voluntary manslaughter in the shooting of 43-year-old Sam DuBose near the University of Cincinnati last year.

There was increased security in place inside the courthouse. Outside, faith leaders and social activists formed a circle to offer prayers for justice and healing.