Investigators are looking into the death of a man who fell through the roof of a factory in Plymouth Wednesday. Officials say the 46-year old man from Muncie fell through a skylight on the roof at American Container to the floor 25 feet below. The man worked for 5 Star Commercial Roofing in Huntington, and was tarring the roof when it appears he backed onto the skylight and fell through it. He was pronounced dead at the scene.