Villain seems fishy and 59-6 over 20 hands. He's folded to 1/5 c-bets so far. When he calls the cbet I put him on some weak ace most likely, check turn behind supports that. River is nice, but the board is paired and i'd like the jack better if it wasn't a diamond. Thoughts on line?

Party Poker No-Limit Hold'em, $1.00 BB (6 handed) - Party-Poker Converter Tool from FlopTurnRiver.com

Button ($106.76)
CO ($134.63)
UTG ($130.64)
Hero (BB) ($100)
MP ($100)
SB ($167.01)

Preflop: Hero is BB with K, Q
3 folds, Button calls $1, SB calls $0.50, Hero bets $4, Button calls $4, 1 fold

Flop: ($11) 2, A, 10 (2 players)
Hero bets $8, Button calls $8

Turn: ($27) 10 (2 players)
Hero checks, Button checks

River: ($27) J (2 players)
Hero bets $18,