Weak top pair vs possible bluff.

[Eeegah]

This table has been in total flux since I sat down. Four handed when I sat, then filled up, now down to six after the three aggros left after the same hand. Don't have a lot of hands on this guy but his AF is sky high, and he seems to like being the table bully. Hard to tell if he's actually LAG or TAG yet since the table size has been so dynamic.

PokerStars 0.50/1.00 Hold'em (6 handed) converter

Preflop: Hero is SB with J[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, CO calls, Button calls, Hero completes, BB checks.

Flop: (4 SB) J[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, CO calls, Button folds.

Turn: (3 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, Hero...

The guy paused a good ten seconds before hitting the raise button, and I strongly suspect a bluff. He's aggro enough that I can't pin him on a slowplay. My plan here is to call and checkraise him on the river. Anyone have an alternative?