True.
But the teen was tried as an adult and considered 1) fully responsible and 2) of a sound mind to be tried instead of being sent to a mental hospital.
My struggle here is with seeing the responsibility factor like a big pie. The kid's portion of that pie was 100%.
So how is the father responsible – there is no pie left.
If someone gives me a gun and I, with a sound mind, decide to kill people, I am 100% responsible as an adult.
How is a teen tried as an adult any different?