KJo missed everything tried to bluff river.

[Coz]

My opponent hadn't done to much so I don't really have a read on him, by this time we are about 20-30 hands into tourney. I hadn't seen him play all those hands because he got moved to our table after around 10 hands. I didn't think he had a T or a 9 and believed that I made a good move on the river. I put him on something like a 4 or a smaller PP, I thought that I might also get a 9 to fold. Thoughts?

PokerStars No-Limit Hold'em Tourney, Big Blind is t50 (8 handed) UPF Handconverter

MP2 (t4300)
CO (t2563)
Button (t2120)
SB (t3622)
BB (t3045)
UTG (t2545)
Hero (t2260)
MP1 (t1275)

Preflop: Hero is UTG+1 with J[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t150</font>, <font color="#666666">3 folds</font>, Button calls t150, <font color="#666666">1 fold</font>, BB calls t100.

Flop: (t475) T[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, Hero checks, Button checks.

Turn: (t475) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets t320</font>, Button calls t320, BB folds.

River: (t1115) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t800</font>, Button calls t800.

Final Pot: t2715