I think it is much more merciful to allow people a way out of a life in prison. I am mean enough to want them to suffer every single moment of what prison entails. I want him to live to regret what he did. He may not today. But how’s he gonna feel in 20 years when he’s been sitting in a cell for all that time? Maybe just as spiteful and hateful. But maybe he grows up and he hurts from his decision. I want that for him. Sadly, like you said, this will make him a martyr to a cause for his ilk, and it spares this boy the misery of living to feel the pain of his crimes that would likely come with maturity.