Well this was an interesting hand. First let me explain why I was in this hand at all. Villain was a loose player raising with a wide range. I figured I'd take a stab at him since I had position. The final call still did not come easy though but after considering his line I felt 90% sure he missed a draw or was just trying to steal the pot. I was right!
Edit: Scratch the position comment. I need to focus more!
Known Players:
UTG3: 3405 - 57 bb
MP1: 1255 - 21 bb
MP2: 5630 - 94 bb
MP3: 2553 - 43 bb
CO: 2270 - 38 bb
BU: 705 - 12 bb
SB: 4260 - 71 bb
BB: 3715 - 62 bb
30/60 No Limit Hold'em Tournament (8 Handed)
Hand recorder for this hand: PokerStrategy.com SideKick 2.1.20409.2
Preflop: Hero is SB with A♥, 9♦
Hero posts small blind (30), BB posts big blind (60), 3 folds, MP3 raises for 120, 2 folds, Hero calls, BB folds
Flop: (300 - 5 bb) 4♣, 3♠, 2♥ (2 Players)
Hero checks, MP3 bets 180, Hero calls
Turn: (660 - 11 bb) K♠ (2 Players)
Hero checks, MP3 bets 240, Hero calls
River: (1140 - 19 bb) 2♦ (2 Players)
Hero checks, MP3 bets 2013 and is all in, Hero calls
Villain had 8D 7S. SideKiick is not copying the whole thing. 
I once pulled a K high hero call in SCOOP. Yeah, sometimes villain is so obvious he has nothing you can call without blinking to these stunts. The main factors that made this decision possible are probably impossible to show in the forum. Way villain was playing in the table, hands he played in a similar way, bet timing, etc. are all factors we notice consciously or unconsciously and help make these decisions.
