The difference is in this case the “attack” was announced and legislators had spoken to the police in advance and been told that they were prepared. The other

The difference is in this case the “attack” was announced and legislators had spoken to the police in advance and been told that they were prepared. The other difference is that not even a few months ago, police used massive shows of force against people who were unarmed (other than cameras for the reporters among them) and completely peaceful, in the same area.