This article fails to mention many factors that mitigate the officers performance. Read the comments and see how many people think the office is to blame. Use of deadly force needs to reasonable to be lawful. You show that is was reasonable by doing everything reasonable to avoid it. Those same people who blame the officer may end up on a jury if the district attorney determines the officer may have committed a crime. Will your police report properly justify your use of deadly force?
When writing a use of force report, include as much detail as you can, never assuming the reader knows anything about the incident, you, your agency, or the suspect. Explain how far away the suspect was from you, what they said, their demeanor, their response to what you did or said to them. Try and quote them as best as you can remember. State your emotional response, were you breathing hard, were you scared, nervous, tired, afraid, feeling threatened? Did you try any alternatives to deadly force and if not, why not? The more detail you can include in your report to justify why your actions were reasonable, the better, that's what the SGT Says.