There isn't a chance in the hot place that I would render aid to a person I just shot.
When confronted with a situation, I will give that person every opportunity to stay alive. When force is the only option, I will lay fire on that guy until there is no sign of resistance. At that point, in my philosophy, the person I shot is just going to have to hope that I missed the vitals, and that he's luckier than I am.
I wasn't given a choice about whether or not to shoot him, and I'm not going to interfere with whatever fate has in store for him.
I'm going to back the heck away, avoid his probably infected blood and tissue samples, not put myself within spitting distance, take care of my family, and protect myself.
For the people who would find it revolting that I would coldly allow a human being to die, I have nothing to say. Yep, let him die. Everyone dies. People always make choices that lead to their death. his decision was as stupid as windsurfing in a hurricane, and even being stupid and a criminal will not deter others from trying to save his life.
If it is in your nature to defend everyone from death, just like the people who protested when ted bundy was executed, that is admirable. At this point, I don't put that much value on the life of any random human being, and evil people are at the bottom of my list. I wouldn't donate an ounce of marrow to save my own brother's life. I wouldn't cross the street to save the guy who wrote the virus I got last year.
But, I'd give my own life to save the minister of my church.