This video is absolutely disgusting and should evoke that emotion in any human being:
I have zero confidence that there will be any justice if this is handled as an internal investigation. It is time for California Attorney General Kamala Harris to step in and initiate an independent investigation of police brutality and violence across California.
No parent, no student, no sane human being can watch this video without feeling nausea, disgust, pain and empathy. Then... RAGE.
Contact CA AG Kamala Harris, if you live in CA and demand an independent investigation, using the online form of the AG's office.
(The form includes a checkbox that asks "I affirm that the foregoing information is true and accurate". You can set that to "No" and it will still accept the email. Since this is second hand information, I suggest putting "No")
EDIT: AG's name is "Kamala" Harris. Can't change the title, fixed in body. Thanks for pointing out in comments