Check or shove this river?

[WildBobAA]

Opponent is loose passive, like 38/0/1.2 over 70 hands. I put him on a draw, but then he checks the river when it hits which makes me think he might have KJ and I think QT would have moved in on the turn. I really couldn't put him on a hand bleeeeeeeh. Should I just check or is there value in a shove?

Full Tilt Poker - No Limit Hold'em Cash Game - $1/$2 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $365.85
BB: $314.95
UTG: $202.00
MP: $236.15
Hero (CO): $206.25
BTN: $296.15

Preflop: Hero is dealt 6[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/spade.gif[/img] (6 Players)
<font color="red">UTG raises to $7.00</font>, MP folds, Hero calls $7.00, BTN folds, SB calls $6.00, BB calls $5.00

Flop: ($28) 6[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (4 Players)
SB checks, BB checks, UTG checks, <font color="red">Hero bets $25.00</font>, SB calls $25.00, 2 folds

Turn: ($78) 9[img]/images/graemlins/club.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $70.00</font>, SB calls $70.00

River: ($218) 5[img]/images/graemlins/diamond.gif[/img] (2 Players)
SB checks, <font color="red">Hero has $104 behind