[krimson]

I think the river is the only piece in question here right?

I think I like this river 3-bet. I actually started out writing a response that I didn't like it and would just call but my analysis leads in the other direction.

I think his line here suggests that he does not have 7's. It looks like he backed off on the turn when we raised, but then when the 3rd 7 comes he gets comfortable again and c/r's us. Likely holdings are A9, AT, KT, QT, JT, or an overpair. Possibly even an underpair.

There are much more combinations of non JJ+ hands that he could have raised here.

I guess the question is, how often is he c/r'ing the river with something worse than 7's full of 10's? I think your experience with the villian is more helpful in determining the finer aspects of this than looking at his stats.