QQ in 3-6 Kill hand

[ResidentParanoid]

I am UTG in a 3-6 kill hand (bets are 6-12). I just arrived at the table and I have no read on anyone. Button player is an older gent with 3 or more racks of chips stacked in front of him. Killer is in the SB.

I get QQ and raise, MP calls, cutoff calls, button raises, SB calls, BB calls, I re-raise, MP folds, cutoff throws in a gratuitous cap, everyone else calls.

Flop comes T63 rainbow. Check, I bet, cutoff calls, button raises, SB, BB fold, I re-raise, cutoff calls all-in, button caps, I call.

Turn is J, suit doesn't matter. I check, button bets, I call.

River is Q, I check, button checks.