AK, should I have slowed down?

[JudoGirl]

CO was a total maniac who lost most of his stack at a 5/10 6max table I was playing. After he left I went looking for him 20 minutes later. Found him at a 10/20 table. I never played 10/20, but thought "if the pickings are good and I got the money, why not?" But even maniacs could get a killer hand. My only read on UTG+1 was that he was playing a lot of hands, some marginal. Given my reads, should I have slowed down?

Party Poker 10/20 Hold'em (10 handed) converter

Preflop: Hero is MP2 with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls, <font color="#CC3333">UTG+1 raises</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO caps</font>, <font color="#666666">3 folds</font>, UTG folds, UTG+1 calls, Hero calls.

Flop: (14.50 SB) 3[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG+1 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, UTG+1 calls, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">CO caps</font>, UTG+1 calls, Hero calls.

Turn: (13.25 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
UTG+1 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, UTG+1 calls, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">CO caps</font>, UTG+1 calls, Hero calls.

River: (25.25 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG+1 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, UTG+1 folds, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">CO caps</font>, Hero calls.

Final Pot: 33.25 BB

[Nick Royale]

If he's a total maniac I can see no reason to slow down. The alternative would be to just call the turn raise, but since I guess this maniac would raise the turn with a wide range of hands I don't see that as necessary.

[sean c]

No way I slow down here. If the river had been a brick I might bet/call a raise but flop &amp; turn I'm ramming.