If we have like 500 hands or so on him, and some idea of what he's doing postflop its a fold though. With this sample I suppose a crying call is standard.

What is his range on the river shove..not just 'what hands could he have here'

44 is definately not in his range, and J6 or 46 doesnt make sense, so you're just listing hands that beat us, not which hands are likely to take the entire line starting preflop and going to the river.

If he's 5/0, even if its for 20 hands, hes not limp calling J6 period.

I'm not saying this is a for sure fold, mostly because AJ looks like its showing up here alot and your right we dont have enough info on him to give him a precise range.