Villain was 38/10/5 over 42 hands. Nothing else of note, other than he had raised JJ UTG before calling a 3bet and then checked both flop & turn when he had an overpair to board.

PokerStars No-Limit Hold'em, $0.02 BB (5 handed) - PokerStars Converter Tool from FlopTurnRiver.com

UTG ($1.32)
MP ($2.85)
Button ($2.92)
Hero (SB) ($6.05)
BB ($7.08)

Preflop: Hero is SB with 10, 10
UTG bets $0.04, 1 fold, Button raises to $0.20, Hero calls $0.19, 2 folds

Flop: ($0.46) K, 8, K (2 players)
Hero checks, Button checks

Turn: ($0.46) 10 (2 players)
Hero bets $0.32, Button calls $0.32

River: ($1.10) A (2 players)
Hero bets $0.82, Button raises to $2.40 (All-In), Hero ???

I think that is the worst river card that can hit? His 5x 3bet reps a big hand, KK/AA/AK is what I would put him on. Probably disregard KK when that flop hits. Can anybody find a hero fold here or is it a crying call?