so what are the real solutions to police killings?

[The Velveteen Ocelot]

1. It has to start at the management level.

Fish rots from the head. All the body cameras in the world won't help much if nothing is done about the mentality that says police officers need not be held accountable for what they do. There was a video showing the killing of Eric Garner and even that wasn't enough to persuade a grand jury to indict the officer who did it. I'm definitely in favor of body cameras and of rules prohibiting turning them off, but if prosecutors, who are often tight with their police departments, slant their "evidence" to a grand jury to the point where a no-bill is a foregone conclusion (e.g., the Garner and Michael Brown cases), the problem isn't cameras, or the lack of them. It's much, much deeper than that, and that's why it will be hard to fix. The cameras are only a small start.