Federal investigators will begin several days of hearings on Wednesday into a dockside cargo ship fire that killed two New Jersey firefighters last summer at one of the busiest U.S. seaports. The Coast Guard and the National Transportation Safety Board are investigating the cause of the July 5 blaze in which the Italian-owned Grande Costa d’Avorio caught fire in Port Newark. Newark fire Captains Augusto “Augie” Acabou and Wayne “Bear” Brooks Jr. died while fighting the blaze.