Was I too aggressive?

No read on any player.

PokerStars 1/2 Hold'em (9 handed) converter

Preflop: Hero is BB with Q[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">4 folds</font>, MP3 calls, <font color="#CC3333">CO raises</font>, <font color="#666666">1 fold</font>, SB calls, Hero calls, MP3 calls.

Flop: (8 SB) T[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP3 folds, <font color="#CC3333">CO raises</font>, SB calls, <font color="#CC3333">Hero 3-bets</font>, CO calls, SB calls.

Turn: (8.50 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, CO calls, SB calls $2 (All-In).

River: (11.50 BB) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players, 1 all-in)</font>
<font color="#CC3333">Hero bets</font>, CO calls.

Final Pot: 13.50 BB

Is leading out and then reraising the flop right? Would a checkraise be better to see how they respond.

Then I guess the turn is right because it is still possible he has something like A10 or JJ.

I probably shouldnt have bet the river as QJ was a likely hand, but I figured I would bet and fold if I was raised. Comments on this?

Anyone care to guess what the result was?