Villian is 22/16/3 - no history, and we've never played together before this session.

Hero playing 19/15 - fairly standard.

I just can't put him on a hand on the river. I don't think he's ever bluffing this river, as I think he bets a FD/set on the flop, and even if he didn't, I think he raises turn w/ flush or just call/call's (can't see value in him raising river big with non-nut flush given how hand has been played). The only hand that makes sense for this line is KK, which also could explain his bet sizing - very big in order to get paid off by Ax/flush.

I hate basically putting a person on a single hand but I'm still leaning towards a fold.

What say you MSNL?

Full Tilt Poker, $2/$4 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

SB: $204.60
Hero (BB): $1,065
UTG: $486.20
MP: $406.70
CO: $418.90
BTN: $570

Pre-Flop: J T dealt to Hero (BB)
UTG raises to $14, 3 folds, SB calls $12, Hero calls $10

Flop: ($42) 5 8 A (3 Players)
SB checks, Hero checks, UTG checks

Turn: ($42) A (3 Players)
SB checks, Hero bets $28, UTG calls $28, SB folds

River: ($98) K (2 Players)
Hero bets $70, UTG raises to $300, Hero (???)

good read on kk. i think folding is prob good