Pedestrian struck twice , dragged 17 miles by first vehicle , Brooklyn police say . Man struck in Queens , van stopped in Brooklyn , police say . Body was lodged under retrace van 's 's chassis , according to police . Surveillance video shows a body in the middle of the street . Police van route , seeking body parts .
Pedestrian struck twice , dragged 17 miles by first vehicle , Brooklyn police say . Man struck in Queens , van stopped in Brooklyn , police say . Body was lodged under retrace van 's 's chassis , according to police . Police van route , seeking body parts .