Bovada 2/4

560 eff

V opens UTG to $12, Hero raise OTB to $38 with AKo (No diamonds), V calls.

Flop ($80) Td Jd Qh Checks, Hero bets $51 and V calls.

Turn ($182) 2s Checks, Hero bets $115 and V calls.

River ($412) 8d V shoves for $353. Hero?

Obviously never folding AK with a diamonds but do we have to fold this too? This is bovada, can we be sure V never has just a 9? Can these just be a random bluff? There are not that many flush combos left.