Mr. Castile alone could have behaved differently and most likely not gotten shot. If his hands had been in plain view once he announced he had a gun, I don't think the police officer would have shot. His continuing to reach for something is what prompted Yanez to draw his weapon and shoot.
Yanez could have also behaved differently to yield a different result. Once Mr. Castile said he had a gun, Yanez should have given clear instructions on what he wanted Mr. Castile to do.
So, both men bear some responsibility for what happened. I do think the greater weight of responsibility is on the police officer, though. Mr. Castile, however, is not blameless. He would be blameless if Yanez had gotten out of his police car and immediately started firing into the car.
To adapt what they say in Spiderman, with carrying a weapon comes great responsibility. That goes for both police and civilians.
I got my CHL several years ago but never carried. There are a LOT of things to think about when you carry a gun. It just wasn't something I wanted to do.
Except, as a professional with a responsibility to
protect, I hold the police officer to a much higher standard than Castile. Civilians are not supposed to have to cater to the delicate nerves of highly-strung, lethally armed, police officers. It's supposed to be the officer's job to have a cool head, nerves of steel, and be able to de-escalate and control a situation.
There was a little girl in the back seat. There was a woman beside Castile.
That officer approached the car already in a state of heightened anxiety, imagining that he was about to take down a desperado. The sight of a black man with a woman and a child did nothing to suggest to him that perhaps these were just ordinary civilians going about their lives. When Castile moved, the officers anxiety tipped over into outright panic as he imagined that Castile was about to gun him down. So, without a single thought to the safety of anyone other than himself, he fired into the car, putting the lives of both the woman and child at risk. Any of his bullets could have gone through his victim and into either of the other two passengers.
Not only should this man have never become an officer, he shouldn't have had a gun license. This is not someone who can be trusted with lethal force. He doesn't have the temperament for it. Odds are, he never did.
This reminds me of those arguments people get into about the drunken, scantily clad woman who sashayed into a dark alley behind the bar at 3am. Does she bear any responsibility for her rape? Her actions and her choices made her vulnerable, yes, but ultimately guilt lies ONLY with the man who chose to rape her.
Castile, the civilian, tried to reach for his license. The officer, a "professional", panicked and killed a man. Only one of these men is a murderer, and it's not Castile.