The amusement ride that broke apart at the Ohio State Fair late last month, killing a man, was due to its “excessive corrosion,” investigators concluded on Sunday. The Fireball, an 18-year-old fairground ride created by Dutch manufacturer KMG, broke mid-ride at the Ohio State Fair in Columbus on July 26. In addition to the death of a Marine recruit, seven other people were hurt. In a response letter from the company, Product Manager Albert Kroon said the investigation into the incident determined that the ride malfunctioned from “excessive corrosion on the interior of the gondola support beam,” which “dangerously reduced...