10NL, 3bet pot, OOP should I Cbet flop?

[Biglines]

I played this hand horribly. Button is a maniac donk who I was hoping to isolate. CO's stats are of 21/16 with AF of 1. Should I be Cbetting this flop as Im OOP and its a multiway pot? My river bet is a shocker.

No-Limit Hold'em, $0.10 BB (6 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

Button ($41.70)
SB ($10.05)
Hero (BB) ($10.65)
UTG ($15.10)
MP ($10)
CO ($8.10)

Preflop: Hero is BB with J, J
2 folds, CO raises $0.30, Button calls $0.30, 1 fold, Hero raises $0.90, CO calls $0.70, Button calls $0.70

Flop: ($3.05) 5, Q, 3 (3 players)
Hero checks, CO checks, Button checks

Turn: ($3.05) A (3 players)
Hero checks, CO checks, Button bets $0.40, Hero calls $0.40, CO calls $0.40

River: ($4.25) 10 (3 players)
Hero bets $3, CO calls $3, 1 fold

Total pot: $10.25

[kb coolman]

Good grief man... Please take this down on the flop with a pot bet. CO's line just screams AK.

Fold the river.

[kevster]

I bet this flop every time. We're the pre-flop raiser so the initiative is with us and we have a made hand with one over card. If the Q has hit either of them I'd rather find out now. I can't see the value in a passive line.

As played, I don't understand why you've led the river.

[xX zorrito Xx]

3-bet preflop = c-bet 99% of the time...

as played I fold turn...