I hope to hear the details of the shooting. If the perp was exiting - leaving the scene and was no longer a threat, the guy who shot him could face charges.
If the perp, when confronted, raised his hands and was shot....that's bad. If the Perp was running away and was shot in the back and killed - that's iffy.
But I am happy to know there are good people with good weapons willing to at least try and help.
“… the greatest detractor from high performance is fear: fear that you are not prepared, fear that you are in over your head, fear that you are not worthy, and ultimately, fear of failure. If you can eliminate that fear—not through arrogance or just wishing difficulties away, but through hard work and preparation—you will put yourself in an incredibly powerful position to take on the challenges you face" - Pete Carroll.