TPGK - Loose Villain Overbets Blank River

[CruNKinTILT]

Full Tilt Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

Not too many hands on villain or much relevant history. Over 40 hands he's running about 60/15/1
I called MP's preflop open b/c he's a weak tight tag and I have been outplaying him postflop.

SB: $208.50
BB: $124.50
UTG: $96.30
MP: $102.70
CO: $212.20
Hero (BTN): $111.85

Preflop: Hero is dealt K[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] (6 Players)
UTG folds, <font color="red">MP raises to $4.00</font>, CO folds, Hero calls $4.00, SB calls $3.50, BB folds

Flop: ($13) 9[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, MP checks, <font color="red">Hero bets $9.50</font>, SB calls $9.50, MP folds

Turn: ($32) 5[img]/images/graemlins/diamond.gif[/img] (2 Players)
SB checks, Hero checks

River: ($32) 3[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets all-in for $195.00</font>, Hero ?