[Mercman572]

Yuck, seems like we are prone to a fundamental mistake in any action we take here:
Calling is incorrect if he has a FD, or J10.
Folding is incorrect if he picked up a FD or is bluffing.
Raising is incorrect if he has anything other than a FD (if he won't call with a naked jack, but will lead river if we cold call)

The lesser of these evils seems to be folding here. C/C lead turn means to me he either hit 2 pair or a flush more often than him trying to draw cheaply or "stand up" with TP. Plus, if we call we potentially compound our mistake if he leads the river.