hand 1: villian is unknown. Do we have to call his river bet after calling turn raise in a 3 bet pot? The board looks scary though. Any thoughts on shoving on the turn vs an unknown player?
No-Limit Hold'em, $1.00 BB (8 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

Hero (BB) ($100)
UTG ($133.10)
UTG+1 ($107.50)
MP1 ($118.60)
MP2 ($253.25)
CO ($100)
Button ($100)
SB ($103.15)

Preflop: Hero is BB with A, K
3 folds, MP2 bets $3, 3 folds, Hero raises $10, MP2 calls $8

Flop: ($22.50) 6, 4, 8 (2 players)
Hero checks, MP2 checks

Turn: ($22.50) A (2 players)
Hero bets $12, MP2 raises $25, Hero calls $13

River: ($72.50) Q (2 players)
Hero checks, MP2 bets $35, [i]Hero ?

hand 2: villian is an uber nit running 11/7/2. His 3 bet% is only 2%. Fold to cbet% is 75%. I dB on this nice board and hit my nuts flush but he snapped shove. weak tight and fold? The thing is I cant really see this guy ever slow play sets except 99.
No-Limit Hold'em, $1.00 BB (9 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

MP2 ($137.55)
MP3 ($100)
CO ($100)
Button ($124.95)
SB ($175.20)
BB ($100)
Hero (UTG) ($100)
UTG+1 ($128.70)
MP1 ($113.65)

Preflop: Hero is UTG with K, A
Hero bets $4, 4 folds, CO calls $4, 3 folds

Flop: ($9.50) 3, 5, 2 (2 players)
Hero bets $6, CO calls $6

Turn: ($21.50) 9 (2 players)
Hero bets $14, CO calls $14

River: ($49.50) 2 (2 players)
Hero bets $28, CO raises $76 (All-In), Hero ?