<1k hands
He's a ''reg''
He was restealling a lot (overall is something like 13/14) and he didn't folded so much to 4bet.
Post he's really passive (20 OTT and 22 OTR).

If we give to him only a range of value turn is something like AQs, AA, QQ, AK (right? but I have no idea of the frequencies of them calling 4b /not showing/bet turn and push river etc without info but just those stats and THIS IS THE POINT OF THE HAND) and against it we play to 27% and we need 25% against his bet.

Is it always a double call if he push river 50bb on 100?

Thanks :)