BALTIMORE – The bodies of two construction workers were found in the cold waters of Baltimore harbor Wednesday, trapped in their red pick-up truck after a giant cargo ship slammed into the bridge they had been filling potholes on, causing a thunderous collapse.Maryland police announced the grim discovery at a press conference, adding that sonar shows what they believe are more vehicles trapped within the concrete and twisted steel debris of the Francis Scott Key Bridge. Six of the eight-man construction crew are believed to have been killed, with four bodies yet to be found.Warning that…