Part of what you say is true.

these mass child murderers are cowards. Only choosing to kill the tiny ones who cannot defend themselves.

My solution is clear and simple. Do not shoot to kill the killer. Save them to be burned alive, chained to a steel post. Get it on video and play it repeatedly on television complete with the screams and terror of the killer. Show it in school. Make sure it out there for all to see.

Many of these cowards who commit these atrocities do it for attention and want their names on TV. They need to know what such a crime really gets them. They may think twice.