So the question is how many fires should you let them light? After that they became very aggressive and used the year gas and batons and rubber bullets to take over the area and force the protestors to retreat back a few blocks. Later on the looting a few blocks away from the police escalated and it does seem like it could have been partially motivated by the violent tactics from before. But if you look at the amount of arson and destruction in Minnesota recently when there was no real police presence, it seems like the result was worse.