This sounds like a NL tournament, not LHE, that you were playing, but that's alright.
Imagine that in this tournament (freeroll or low buyin) where there are dozens or even hundreds of maniacs playing like this. Most of them will bust out on the first hand, some will double up once or twice before losing it all. And a couple really lucky ones will keep winning even longer.
The deck isn't rigged against anyone, computers can make pretty random sets of cards. Part of being random is that there will be rushes and coolers like you experienced. If these things were *not* happening once in a while, then it would be more likely that the cards aren't truly random.
