So the pharmacist is suddenly a doctor or M.E., I could care less. The guy initiated his demise and chose this pharmacist. He lost. Do not blame the pharmacist. Your argument holds no water and excuses the events that led to this.
He has had some level of medical training, since he’s pharmacists.
However, I don’t think you need a medical degree to ensure a prone man stays prone.
The law isn’t about whether or not you care about the man. Obedience to the law ensures, as much as humanly possible, that we stay civilized and aren’t allowed to conduct justice as each of us defines justice.
Rational people can see that they were all bad guys, including the murderer.