We gotta wait for all the facts, maybe theres pictures of the other guy in facebook throwing gang signs.
I really don't like this meme: it really s a good idea to wait for more information before jumping to conclusions. It's a bad idea to rush to conclusions that suit your preconceived notions. I say this as someone who firmly believes in systematic racism; it does exist, but that doesn't mean every single time a black person is hurt in an interaction with police officers that the police are the bad guys. Far more often than they should be, but not always, and we need more information to figure out who is who.
I understand that racists hide behind this explanation to disguise their racism, but don't throw the baby out with the bathwater on this one.