Focusing it on one single act tries to negate the point. It's not just a single act. It's multiple acts, on a daily basis. The police are arresting journalists live on air. For failing to obey commands that weren't given. They shot at other journalists on air. If that's what they're doing on the air.
There is no dispute in police brutality, the police do not deny it, the protesters do not deny it. So why would the truth lie in between an agreed-upon truth?