I agree that it’s a good thing our Heavenly Father is one to forgive. But while He may forgive, He at no point in scripture rescinds His demand that the willful murder of another human being is to be punished by death. I think it’s something we as Christians have somewhat confused, to the detriment of our society and the value it places on human (our) lives. After all, if we are made in the image of a Holy God, then that demands respect, and it demands punishment for those who destroy that reflection of our Heavenly Father.
I suggest the perps move into a house next to yours and let you deal with them. Good luck with all that.