The guy is Ed Lucerno and he's a bit of an old school 'outsider' legend - not sponsored, boats for fun only, a proper soulboater. He got lots of flak for this waterfall run from the 'proper' kayakers. For example, people were saying it doesn't 'count' as a world record because he swam, he's an idiot for doing it in a playboat, blah blah blah...
Jim.