My guess? I’d put the over/under in the 5-15 range with the over being more likely than the under.
You have large, increasingly hostile and lawless mobs living in poorly controlled tent cities that are desperate to get attention and trying to instigate conflict with the police to get media attention.
Combine that with the fact that the Occupy movement is being allowed to break the law with impunity in many places, which will only encourage the mobs to go further, and you have a situation that’s likely to get increasingly out-of-hand.
We already have rape, arson, vandalism, threats, violent attacks against the police and thousands of arrests, all of which the Left is excusing or supporting outright.
If and when this ends with a lot of blood in the streets, let’s just say that no one who’s informed should be able to say that he couldn’t see it coming at this point.