LOL a lot of people play like this at these stakes, they raise small or limp with big hands and raise weaker hands. When someone is raising and pushing a table around and then he limps in and plays it like he did I get very suspicious that they have a big hand. And his raise on the river was not too big to make it look like he was bying it. What hands do you put him on that you can beat on the river... there were really no draws out there. With the ace out there and 5 people seeing the flop you cant beat many hands, all you can beat on this board is a bluff. If he had something like pocket 4's or 5's I think he would just call on the river and take the showdown.