His video showing one of his "supercomputers" is 20 PCs that look like they are old Dell computers a highschool was getting rid of. Maybe if he said 2009 it would be plausible, but this is late 2013 and btc mining was already well established and dominated by the Chinese asic manufacturers. Why waste time trying to mine Bitcoin with gpus?
There is no chance that this guy could have an entire 10-20% of the hashrate himself with only $1m. Even if you bought or developed Asics you would have to mine for nearly a year to break even, much less 20x your investment. Also, why would this business that gave him $1m to do this allow him to keep all of the Bitcoin? Nothing about his story adds up.