Six Flags’ Skyway, 1978
On July 26, 1978, the Skyway ride’s support beam at the Six Flags in Missouri broke and sent the car hurling to the ground. 10-year-old Trisha Weeks, 15-year-old Kristen Johnson, and 25-year-old Clark Freeman Johnson were killed. 12-year-old Jennine Weeks was the fourth passenger who was severely injured, but not killed, when the gondola ride came crashing down 70 feet. 60 other passengers were stuck in the other cars until helped arrived.