Put this villian on a hand and tell me what to do

[ QUOTE ]
villain doesn't get out of line much and your representing an overpair with your preflop to turn line and he is showing no fear, I would check/call or bet/fold this river.

I figure villain has something like AJ,AT since he doesn't raise much preflop, but then again A6,67,69 kind of hands are very possible since he's pretty loose.

[/ QUOTE ]

Yeah, it's tough to put him on a hand here. He's raise with A6 surely in that position, so I discounted that right away. AJ/A10, same thing. So what does he have? I was totally confused on the river here. Did he spike his ace with something lame like A2? Why would he limp with an ace? Why would he be here with a 6 in his hand unless it was a suited conn or A6, in which case why not raise pf or raise the turn??

Nothing about this hand made any sense to me, frankly. It still bugs me.