The trial of a St. Anthony Police officer begins today with jury selection in the Jeronimo Yanez case. Yanez is charged with second degree manslaughter in the shooting death of 32-year old Philando Castile during a traffic stop in Falcon Heights last July. The shooting and live Facebook stream posted by his girlfriend during the incident quickly became national news. The 29-year old Yanez is the first Minnesota police officer in recent memory to face such a charge.