Terrifying History on Instagram: "On September 16, 2009, a terrifying accident occurred on the Xcelerator roller coaster at Knott’s Berry Farm when a critical cable snapped during launch. The failure sent sharp metal debris flying through the air, with one piece severely lacerating the leg of a 12-year-old boy riding the attraction. Another adult male rider sustained neck and back injuries from the sudden jolt. A subsequent state investigation revealed that more frequent inspections and proper m