$10 Deepstack tournie on Stars... down to 110 and in the money, not much difference between 110 - 50..
You have $72,000 chips sitting in about 30th. Blinds 600/1200 with a 75 (i think!) ante.
You sit on BB with

Mid Position player (has been aggresive and likes to make a minimum raise alot, also reraised and called a rereraise with KQ suited earlier in the tournament!)
He makes it 2400 to play, he has $50000 before the hand. Everyone folds to me. I make it up.
Flop

I check.. He bets 2400. I raise to 6000. He thinks and calls.
At this point i am possibly putting him on some sort of draw -

seems likely.
Turn

I come out betting - $10000 of his $42000 ish stack. He immediately reraises all in.
If you call and lose it leaves you $20000 still - if you win the pot it puts you top 5 in the tournie with just over 100 left. If you fold you are left with about $55000.
What do you do?...