Gravesend

On an afternoon in early February, the neighborhood is stunned and horrified when the lifeless body of an eight-year-old boy is discovered abandoned on the roof of an apartment building.

The body has been mysteriously mutilated. No clues, no witnesses, no apparent reason.

When a second boy is found two days later in the same condition, Homicide Detectives Samson, Vota and Murphy of Brooklyn's 61st Precinct quickly deduce that the two boys were victims of the same killer.

The brutal murders of...