This is also a jury selection problem.

From the article:
"The inherent, powerful bias to back the badge is instilled at an early age and almost impossible to undo, experts say." 

There is a community that has to instill a different message about the badge, "Remember that you are always a target and that in order to survive contact with the police, you have to obey every command, no matter how unjust or unfair, and even then you still may not live so try to avoid them as much as possible." 

Of course anyone expressing the latter concerns to their children will automatically be passed over for consideration as a juror.

The "I feared for my life" defense is just another way to say shoot first and ask questions later. The more we let these cops off the hook the more they think they have open season on the community they "serve."