Villain is solid, and I think he has AA here almost every time given the way he played it. This bet is never a bluff, and there isn't a single other hand that makes sense.

PokerStars No-Limit Hold'em, $4 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($574)
UTG ($152.15)
MP ($532.90)
Hero ($465.85)
SB ($737.40)

Preflop: Hero is Button with T, J.
1 fold, MP raises to $12, Hero calls $12, 2 folds.

Flop: ($30) 8, A, 8 (2 players)
MP checks, Hero bets $20, MP calls $20.

Turn: ($70) T (2 players)
MP checks, Hero checks.

River: ($70) T[img]

can't get the converter to work here..

villain bets 56, hero raises to 185, villain pushes, hero folds.