JJ in big pot - making bets that aren't for value.

[UATrewqaz]

I agree with the check through on the river and the bet on the turn.

I doubt BB has an A and and CO might.

BB has a pair higher than your jacks (QQ/KK) he wants to showdown and is scared of the ace and CO might have A8'ish or something or perhaps a club draw, he's harder to read in this spot.

Even though you've shown nothing but strength and a big ace is in your range, if the BB has KK/QQ he's normally calling you down.