Bad beat in online tournament worst play ive ever seen...

[Dude1101 0]

Im playing in a 20K guranteed tourney that started with over 900 people. There are about 56 people left and the blinds are 4K and 8K.I have 85K in chips. UTG I raise to 16K with AQ of spades. Someone in middle position calls and everyone else folds.Flop: 6 3 A rainbow. I lead out and bet 20K and get raised minimum, I re-raise and he goes all in. I call thinking he might have a set or A3, A6 suited. He has pocket jacks!!!! Turn is a Q, river a J! It wasnt so much as the bad-beat as the fact that I raised pre-flop and he must have know by my bet on the flop that I had an ace. So this joker puts all his chips on the line drawing to a J.