That makes sense. There were a few pro-Mladic demonstrations in Belgrade apparently, but I don't think they were very big, and I know there are a lot of Bosnian Serbs living there since the war.
Funny story. When I was living in Belgrade back in 2004, I remember my friend's little brother, who is a bit of a nutter, had a shirt with Ratko's picture on it and "Serbian Hero" written underneath. When were going into the stands to watch the football game, the police were there looking for hooligans, and as we passed, they gestured to us to come over to them and started talking to him. My Serbian was very rough, so I only got the gist of what they were talking about, but they really seemed to like his shirt, and they let us in ahead of the other people waiting to get in.