I ride this trail once a week, the fastest I've ever had on those trails is 35k/hour, he was probably doing about 15-20 km/hour depending on where he was.
I don' t supposed you use dropbox, google drive or facebook to back up your pictures, keep them all on your phone?
I guess the bruises on his back and lacerations to his liver are all fake too? He just walked a few hours up the path with injuries to get a few bucks.
Writing an article like this, I'd hope you are right!