Barra Lad was a famous Canadian show jumper, and actually holds the unofficial world record at 8 feet 1 and 1/2 inches (Huaso's official record is under by 1/4 of an inch).
Anyway, upon landing, he slammed to his knees and went skidding across the ring. Within hours, he was stone cold dead. The final report was internal hemorrhage from "shock".
Either way, this video doesn't even come CLOSE to breaking the record, I'm unsure why they're touting it as such unless they mean French record or something.