A straight's on the board (startled)
The flop, turn, and river are J Q 10 8 9
Another person (who I classified as having a tight yet aggressive player image, he usually folds a bunch of hands, and he just happened to play this hand, but he also has about 2/3 the amount of chips I do(we're both way above average)...) and I are in this pot, and this is a freeroll in its mid stages (2/3 of the field gone, lots of players left (800 or so).
I had AJ suited, and there is no flush possible on the board. Now, after the river comes, he goes all in.
So here is what had happened.
I had raised 3BB and it had folded over to him. He called, and we went check-check after flop, I bet after the turn 3xBB, he re-raised me to 9xBB, and I felt he was overbetting. So, I called. (mistake?) After the turn, I raised 3xBB, and he went all in with all of his remaining chips.
At this stage, I don't know what to do.