Police say a fourth person sought following the abduction and death of a 13-year-old Detroit boy who was riding a bike along a city street has been taken into custody.

Detroit police Chief James Craig says the 51-year-old man was arrested Friday, but no charges have been filed against him or three others.

Craig also said that police are awaiting the results of an autopsy on the body of Deontae Mitchell, which was found Thursday in a vacant lot. Deontae disappeared Tuesday night while riding bikes with a cousin.

Surveillance video shows Deontae being pursued by a man who grabbed the boy by his arm and forced him into a car. Police believe that man was 45-year-old Gregory Walker, who was arrested with a woman in Toledo, Ohio.

Another man was arrested Thursday in Detroit.