What do you think about me suffocating my cold child in warm blankets?
What?! Why would you do this? Are you planning on doing this alone?
No, I'm inviting a hippie to the house and we're going to kill the kid together.
Killing someone is something you should never do except in self-defense, and that's clearly not the case in this scenario. The child deserves to live a happy life, and if you're caught you will end up in jail for the rest of your life.
It doesn't matter, seriously, who cares.
The police, the child's family, and society as a whole. No one would want you to kill a child, and you will go to jail when you're caught.