As with all of these shootings, I'll try to withhold condemnation before the investigation is complete. But my best guess is that the officer may have discharged her firearm thinking it was her Taser.
http://www.nbcnews.com/news/us-news...hows-oklahoma-police-kill-unarmed-man-n650866
http://www.nbcnews.com/news/us-news...hows-oklahoma-police-kill-unarmed-man-n650866