Will you find excuse for other people even if they step on you?

The partner of Liang's is the same guilty because he was there and did nothing to save the dead guy either, and he walked away with no charge. He is White. 

What if the police is black and he shot dead an asian by accident and convicted manslaughter? You think the black people won't protest it and will just quietly let it go?

All in all, it's politics and racism. You are bullied and you need to wake up! If you choose to be quiet, this will happen everyday for the rest of your life.