It's a tragedy, all that has happened in his life, his siblings lifes and his mothers life, atleast we can agree so far (I hope), no matter the outcome of his trial this, and every other case that resembles this situation is a permanent stain on our society and the judical system we practice. There's never going to be a winning side, because someones life has already been destroyed, in fact in this case atleast three lifes are already horribly wrecked. We can't change that, unfortunetly. But we, as bystanders often forgett the grey zones that lead up to situations like this.
1. Everyone has the right to create life and foster children
No matter where you come from, no matter your situation in life you have the right to create life and keep this new life until the situation for this newborn is beyond repair or help. It didn't help these kids that their mother was a drug addict, it most certainly didn't help their mother was a child of her own, 14 year old is no age to create life, even if our bodies are capable of such. Is this due to our legacy?
Children should never have to stay in a bad upbringing, not in a society that claims to be as advanced as ours. We can gloat all we want over the less fortunate in our world, those who never try to achiev anything and just sit down and vegetate, but a child can't fix anything on its own, it needs a safe haven, a family to learn what's right and what is wrong. If our basic needs aren't fullfilled as children we never develop the social understanding and compassion we need to function together with others, even in the most primordial versions of human society has children been guided towards what was right and wrong, if no one is there to teach, a human doesn't know. Your upbringing have taught you everything about right and wrong, don't claim you knew it out of thin air, because you simply did not.
What could have stopped this from happening is to have these children removed from their mother, early if not at birth. These children was born into hell, they can't form right from wrong on their own and certainly didn't get much help from their mother or family. This is apparent in many cases where children who grow up in horrible situation turns out for the worst or are scared for the rest of their lifes to the point they have nightmares every night, can't function at a job, trust issues, don't understand our social rules and laws (the list can be made long).
This "mother" should have gotten treatment early on, I'm sure she did not live a wonderful life, perhaps even she should have been taken form her family at a young age, they were obviously not fit to foster a child either. Does everyone have the right to bring life into this world and foster it? from a physiological (or divine I guess) stand point yes, but this is due to how we are built. From the view of our society not everyone is fit to bear a innocent life into this world, shouldn't we stop that before another life is ruined from start?
2. Our judical system is torn between two disciplines
As long as the modern judical system has existed it has been tormented by the tearing between the two main disciplines that exist, through our moral and social stand points; Punish and rehabilitate. The two disciplines couldn't be futher away from each other and contain mixed messages when they opperate together, are we to punish criminals because they did something deemed immoral or wrong (as in outlawed) or do we want to rehabilitate them to not doing it again and live normal, socialy adapted lifes?
As many metaphors that can be pulled out of the law system that exists today, I'm sure there isn't enough space here on the forum and I sure do not have time to sit write them all down either (for that matter I don't think anyone would read it). But the main problem now will be, which discipline do we want this child to be tried towards. We can't find a middle ground for our judical system, we will have to choose one of the disciplines one day. I'll leave this section with this thought:
If we work for a "better" society, where the "greater good" is in the interest of everyone. Execution or labour camps for the severe criminals is the only choice, they have choosen to not be a part of our society, they are branded outlaws, should we care for those who do not work for the greater good of our society? In a world like this resources would not be spend on "saving" criminals, it would be spend on building a greater society for everyone participating in it's development. Criminals would be our plague and you can't cure diseases, only exterminate them.
On the other side we could live in a society where medical care, psychological research and pharmaceuticals would work to save every singel person, where every crime commited would we viewed as a social innability which would be cureable. But in this world, punishment can't exist, because our goal is to make them "whole" and functioning in our world again.
3. We are not in a position to argue about life and death
This argument, where religion has it's largest hold in my oppinion, is flawed. We, as humans do not have divine right to judge if someone lives or dies for their behavior, crimes or diseases. What ever you believe in this argument can't be upheld because we as humans wage war. As soon as we pick up a rifle, hand gun, machette or whatever to kill another human has already been flung out the window. Our goverments has already taken a stance on this subject and that is that we are allowed to play god. We kill thousands of people, every day in different wars, wether it be "war on drugs" or in the middle east. We are ready to respond to violence with ultimate force, our judical system can't bypass that.
In a world where war is acceptable, life and death is not a divine right, it's in the hands of the people with the biggest guns, our goverments. It might just be statistic to the most of you, but every time a civilian dies, it's not just a casualty it's that argument lost. Our world doesn't practice divine right when it comes to life or death, it will never do.
On topic
Whatever he will be tried as, it's a tradgedy that this happened, I wish it never did. I wish this was the worst case I have heard, sadly though, It isn't even close.