Overplayed on the river?

[Ruddiger]

PokerStars 2/4 Hold'em (6 handed) converter

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="CC3333">Hero raises</font>, MP folds, CO calls, Button folds, SB folds, BB folds.

Flop: (5.50 SB) 8[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="blue">(2 players) </font>
<font color="CC3333">Hero bets</font>, CO calls.

Turn: (3.75 BB) K[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players) </font>
<font color="CC3333">Hero bets</font>, <font color="CC3333">CO raises</font>, <font color="CC3333">Hero 3-bets</font>, <font color="CC3333">CO caps</font>, Hero calls.

River: (11.75 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players) </font>
Hero checks, <font color="CC3333">CO bets</font>, <font color="CC3333">Hero raises</font>, CO calls.

Final Pot: 15.75 BB

Results in white below: <font color="white">
Hero shows Ad Ac (two pair, aces and eights).
CO shows Js 8d (three of a kind, eights).
Outcome: CO wins 15.75 BB. </font>

[Nate tha' Great]

It really depends on just how loose his cold calling standards are before the flop. If he plays like a total fish, you should be more inclined to give him credit for trips, since this is exactly how a fishy player plays trips.