Four Charged with Murder in Ambush of Chicago Police Officer Areanah Preston.

Four teenagers have been charged with first-degree murder in connection with the killing of Chicago police officer Aréanah Preston, who was found shot to death near her home over the weekend. The suspects also face additional charges for armed robbery, arson, burglary, possession of a stolen vehicle, and unlawful use of a weapon. The police department will rule Preston's killing as a "line-of-duty death," bringing additional benefits to her family. The suspects had committed several other armed robberies and a motor vehicle theft shortly before the shooting.