If you kill five children you have proven you are a demon and need to be sent back to hell. You need to be tried and executed. You need to moved to the head of the line in death row.
How anyone could think otherwise escapes me.
Actually it doesn't. Soft headed people are impressed by evil these days, Pure evil impresses them more. They are in thrall to evil because they halfway buy into it. They just don't have the guts to do it
I believe we've progressed past the point where crazy people were seen as being possessed by the devil. Strapping them to a board and holding them underwater to see if they can live, likewise, has been discarded as a legitimate response.
Yates was/is/will always be bonkers. That doesn't change what she did but I'm pretty sure we've progressed past the point where we kill insane people because they offend our sensibilities.