It seems that several of you commented without watching the video, it was murder, no 2 ways about it.
First off, the thug that got shot wasn't the one armed, He was involved in an armed robbery, OK, tough Sh!t for him, Pharmacist runs OUT OF THE STORE, chasing the second (Armed) robber, comes back, walks past the unconscious, HEADSHOT, robber, unlocks a drawer and gets a second gun, comes back and pumps 5 more rounds into the STILL unconscious, HEADSHOT, robber, he had no way of knowing if the BG was even still alive. It was excessive, there was no threat, and he deserves jail.