I highly doubt he's c/min raising JT on the flop, so that can be heavily discounted. He would have certainly 3bet JJ pre the way he was playing, so that can be discounted.

He reps only 333, 444, and its possible he only shows up with those hands here this deep, but given your description he can probably show up with other stuff.

What was the timing on his flop action, and his turn bet?

Your feel has a big part to do with this decision imo, sometimes you just feel based on the flow that you're either good here or not. It's tough to comment only see the HH.