Villian- Mid 20s fairly competent tag. Started out pretty nitty but recently got it all in 3 way with mid pair so he seems to be a little more comfortable with the table and playing to his image.
Hero- Playing on the looser side of tag and very aggressive post flop. Has shown down 3 hands in ~4 hours and they were all very big hands.
Pre- Hero raises to 40 utg with J

J

folds to villian in the co who calls everyone else folds.
Flop (95) 942 w/2 spades - I lead 55 he calls slowly.
Turn (205) Ko - I bet 120 he tank calls.
River (445) 10o - I bet 220 villian stuffs for 800 more.
My reads during the hand were that villian was pretty weak on the flop, flush draw pair or maybe even 2 overs. When he goes all in on the river I know he could bluff in this spot and I also don't think it is likely that he would play many 1 pair hands this way.