Well, you pretty much telegraph your hand when you flat a 3-bet here, but at these stakes it's probably ok.
If you're not comfortable playing JJ OOP, then you can profitably 4-bet here because villains 3-bet range is obviously going to be wider than normal against the fish. You're not turning your hand into a bluff. When you can win 13bbs w/o seeing a flop, and fold out hands like AQ, KQ, etc... It's really a problem of what you feel most comfortable with OOP. Some people it will be more EV to cold call, others 4-bet. Just be real about your own game.
The only eureka moment I can offer is that if you don't feel confident in your read, what size pot are you looking to play with JJ OOP against 2 people? You're going to leave yourself some tough decisions on later streets by c/c. Again, be real about your own game. Leading at this pot that already has 28 bbs in it is ok as well.
As played, fold river. Even though his range is wider, it's full ring, and he's probably not bluffing
more than 30% to make it a profitable call.