A-hi pissing contest with a maniac

[MATT111]

CO in this hand is the biggest retard ever. He mixed up his play by chasing and capping 1-3 outers. Rest of the table are average Party 1020 donks. The other villain was 40/20 type. I ran pretty good so far.
On the river I considered a call definetely EV+ but folding out a pair would be a big coup.
Party Poker
Limit Holdem Ring game
Limit: $10/$20
6 players
Converter

Pre-flop: (6 players) Hero is BB with K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img]
<font color="#cc0000">UTG raises</font>, UTG+1 folds, CO calls, Button calls, SB calls, <font color="#cc0000">Hero 3-bets</font>, UTG calls, CO calls, <font color="#cc0000">Button caps</font>, SB calls, Hero calls, UTG calls, CO calls.

Flop: 9[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/heart.gif[/img] (20SB, 5 players)
SB checks, Hero checks, UTG checks, <font color="#cc0000">CO bets</font>, <font color="#cc0000">Button raises</font>, SB folds, <font color="#cc0000">Hero 3-bets</font>, UTG folds, <font color="#cc0000">CO caps</font>, Button calls, Hero calls.

Turn: 8[img]/images/graemlins/club.gif[/img] (16BB, 3 players)
Hero checks, CO checks, Button checks.

River: Q[img]/images/graemlins/club.gif[/img] (16BB, 3 players)
Hero checks, CO checks, <font color="#cc0000">Button bets</font>, <font color="#cc0000">Hero raises</font>.