Thou Shalt Not Kill: That is what God commanded us in His Word. That was what children were learning in schools before Supreme Court outlawed Bible reading and prayer in our schools. The secularists took over school systems and teaching children that there is no God to fear, human beings are accidental by products of millions of years of evolution. The devaluation of human life has painful consequences, as we see around us in every school shooting.
Solution: Bring back the Word of God into our Schools. Teach the fear of God and preciousness of every human life to every kid. Trust in Lord Jesus Christ as your Savior. Forgive your offenders and enemies. Love every one like Jesus.