This is the result of piss poor driving and shifting habits combined with bad driving.
I read the entire story on the borads where this guy posted. Apparently, he was trying to prove to his buddy how quick his BRAND NEW Acura RSX was. He was redlining every gear, shifting only when the RPMs were over 7,500. When he tried to slow down, the driver pulled too far to the left on the shift knob and dropped it into 2nd. Since he didn't try to left up the clutch, but rather let it pop on its own, he blew his pistons right out the bottom of the block.
A really funny story. If I can find the link, I'll put it up...