Hi all ( ish )
This was about hand five after being moved table in a bounty tourney no notes on BB
Blinds are 200/400 both players on 50k ish 
Folded to me in the SB  
 
 
 I Raise to 1200 and BB calls
Flop  
 
  
 
I check and BB bets 2000 so i call.
Turn  

i check and once again BB bets 5000 so i call
River  

I check as expecting BB to lead and he does ALL IN!??
Call Fold Thoughts??