[jr4284]

That turn reeeeeeeeeeeally sucks with this board. If his 3-handed SB 3-b range is pretty decent (66+, QJs, K9s+, KJo+, A7s+, A8o+) it really depends on reads. If he played all of his hands this way, easy easy calldown. We're a 69:31 dog getting 9:2.

The fact that he donked the flop makes it seem like he's "continuing with the best PF hand" in his mind and then slowing down when you raise him. Refined range: A8o - AKo, A8s-AKs, KTs, TT
I'm giving him waaaaay too much credit with this range, but most better hands I think 3 bets would go in on the flop.

If we throw in a "20% bluff with limited outs" situation by adding KJo, KQo, KJs, KQs, 77, our equity goes up to 25% and we have a calldown. If he's only bluffing in this situation rarely (which is the more likely case given the preflop action and that he expects to showdown) then it's a fold. He needs a good % of bluff in his range to make this profitable.

Go with your reads. If you don't have a read, then call this down and make a note.