NL100: Should i fire the 3rd Barrel here

[Baja15]

Villain is unknown. Is anyone shoving the river here or should i just give up? Also how's my line up to then?

OnGame's Room No-Limit Hold'em, $1BB (10 handed) by Hand Converter CG

saw flop|<font color="#C00000">saw showdown</font>

MP3 ($121.85)
CO ($178.95)
Button ($73.85)
SB ($108.55)
BB ($100.00)
<font color="#C00000">Hero ($103.55)</font>
<font color="#C00000">UTG+1 ($225.65)</font>
UTG+2 ($91.50)
MP1 ($59.80)
MP2 ($119.55)

Preflop: Hero is UTG with 7[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to $4</font>, UTG+1 calls $4, <font color="#666666">8 folds</font>.

Flop: ($9.50) 5[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>, UTG+1 calls $8.

Turn: ($25.50) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $22</font>, UTG+1 calls $22.

River: ($69.50) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero ?