If you are staying silent on this issue, you are choosing the side of the oppressor. If you are saying that not all cops are bad, you are choosing the side of the oppressor. If you are just telling yourself that you're not racist, so it's okay, that is not enough. You need to be actively anti-racist at a time like this. Don't stay silent. Let your voice be heard. If you truly believe that black lives matter, then do something about it. Fight for their rights.