You don't have showdown value. There aren't even any draws out there thta he could have missed.
Here's a hand I played recently where I thought I had showdown value on river with ace high:
PokerStars No-Limit Hold'em, $0.50 BB (6 handed)
Poker Stars Converter Tool from
FlopTurnRiver.com (Format: 2+2 Forums)
BB ($48.95)
UTG ($75)
MP ($28.85)
Hero ($50.20)
Button ($44.80)
SB ($47.40)
Preflop: Hero is CO with A[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">
1 fold</font>, MP calls $0.50, <font color="#CC3333">Hero raises to $2.5</font>, Button calls $2.50, <font color="#666666">
2 folds</font>, MP calls $2.
Flop: ($8.25) K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
MP checks, <font color="#CC3333">Hero bets $5</font>, Button calls $5, MP folds.
Turn: ($18.25) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.
River: ($18.25) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $7</font>, Hero calls $7.
Final Pot: $32.25
Results in white below: <font color="#FFFFFF">
Hero has As Jd (one pair, kings).
Button has 4c Ac (one pair, kings).
Outcome: Hero wins $32.25. </font>