Relatives of two New Jersey firefighters who died battling a cargo ship fire last summer and the head of a powerful international firefighters' union called Wednesday for the top leaders of the Newark Fire Department to be replaced, saying they had botched their response to the blaze. Relatives of two New Jersey firefighters who died battling a cargo ship fire last summer and the head of a powerful international firefighters' union called Wednesday for the top leaders of the Newark Fire Department to be replaced, saying they had botched their response to the blaze.