Interesting that Don Lemon had thoughts on this very thing. And those thoughts he had surprised the hell out of me (because they come from him). He's essentially saying that liberals are the racists you have to worry about.
cued... https://en.wikipedia.org/wiki/Culture https://en.wikipedia.org/wiki/Heritage https://en.wikipedia.org/wiki/Racism https://en.wikipedia.org/wiki/Sexism https://en.wikipedia.org/wiki/Family https://en.wikipedia.org/wiki/Social_network_analysis_software https://en.wikipedia.org/wiki/Politics
If this is true that they knew each other in any capacity then we can conclude that wasn't a friendly type relationship, obviously. This is not how you treat someone you like or respect,even if you're arresting them. You know a guy, he's getting a little nuts, you might slap his ass around, but this? This is what you do if you hate the guy and now see an opportunity to do damage. That's first degree murder.