I'm enjoying the ballistics discussion, but back on topic a bit.
I know this will sound harsh, but we need to get over the idea that all human life is sacred. Most of us have a built in drive to preserve human life at almost any cost. Firefighters rush into burning buildings to pull folks out. When a single hiker is lost we will send sometimes hundreds of rescuers out to search for them. We willingly risk numerous human lives to help those in trouble. This is the beautiful human instinct to care about our fellow man that lives in most of us. I have no greater respect than for those who risk themselves to protect their fellow man.
Violent criminals don't have that same instinct to care about others. It's been replaced, or they've learned through a flawed upbringing, that violence and crime are acceptable ways to fulfill their needs. They will hurt others to get what they want and are a danger to a safe, productive society.
It's my argument that when folks choose to be criminals we don't need to necessarily think of their lives a sacred any longer, but as sometimes as a cancer that needs to be cut from the otherwise healthy body of society. I don't say that lightly because, ultimately, the failure of parents, relatives and society to raise our young people to be productive, law abiding citizens is a blame we all share to at least some degree.
It is tragic that these three young men died, but they were old enough to know better. Or at least old enough that we should have taught them better by now. Can we overcome whatever is broken inside young adult violent criminals and rehabilitate them? Statistics on criminal recidivism says usually not. Prison obviously isn't working. The religion most incarcerated criminals turn to doesn't help. I'm just not sure how to reach the broken and those who were not taught at a young age to be good people.
Until we figure out how to change them maybe that final lesson of a bullet to the head is all society has left to teach them.
There is virtue in what you say, in that we must learn to tolerate the inevitability of our frailty and of tragedy and of vulnerability to violations. It is wrong to fantasize that we may be able to avoid or (absolutely) control such realities.
But otherwise I could not disagree more. Dehumanizing and assuming that people who have committed such violations are inherently developmentally broken, separate, and deserving of death is precisely the wrong thing to do.
You ask: why prison does not rehabilitate? Why is recidivism so high? The answer is contained within your own statement. These individuals are already separated from society, stripped of human rights and decency, discriminated against in employment, housing, etc. They are treated as less than, as an eyesore, and as dangerous.
If you want to help, then you should be guided back to your morality. To your notion that perhaps their lives are also precious, and that perhaps you are separated more by circumstance than by fundamental belief. And to honor the word
rehabilitate which you use. Perhaps you might envision things such as education, work-release, quality mental health and medical care, and personal freedoms like a modicum of privacy.
To do so requires tolerance of the sadness of identifying with those horrors. It requires fortitude to live with an
emotional recognition that our interventions to make the world safe don't, which is entirely different than the logical recognition you provide.