NL400, turned straight

[Eternal]

Villain is somewhat decent player. He's defin1itely not stupid. What to do here river?

Full Tilt Poker - No Limit Hold'em Cash Game - $2/$4 Blinds - 9 Players - (LegoPoker Hand History Converter)

SB: $373.80
Hero (BB): $431.00
UTG: $186.20
UTG+1: $817.30
MP1: $391.60
MP2: $281.00
MP3: $400.00
CO: $588.85
BTN: $408.00

MP3 posts $4.00
Preflop: Hero is dealt 4[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (9 Players)
UTG calls $4.00, 3 folds, MP3 checks, CO calls $4.00, BTN calls $4.00, SB calls $2.00, Hero checks

Flop: ($24) 7[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img] (6 Players)
SB checks, Hero checks, UTG checks, MP3 checks, CO checks, BTN checks

Turn: ($24) 5[img]/images/graemlins/heart.gif[/img] (6 Players)
SB checks, <font color="red">Hero bets $16.00</font>, UTG folds, <font color="red">MP3 raises to $45.00</font>, 3 folds, Hero calls $29.00

River: ($114) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">MP3 bets $68.00</font>, Hero ?

[sambo_888]

i personally call however surely reraising turn is better option?

[O0Brian0O]

69 is possible since it looks like he posted. I just call and hope he is overplaying 2pair/set, or it's a split.

[SABR42]

Re-raise the turn and go broke there.

As played, call.

[CalledDownLight]

Call as played, but I don't get not 3betting turn.