What explains the brutal, unfeeling, sociopath nature of the murders? The pictures. It’s not “insane.” It’s feral street savages murdering with absolutely no thoughts about how the victims felt.
The shiftless lazy amoral culture brought about by the federal government's destruction of the black family via Johnson's "Great Society" When it becomes a profitable industry for people to have bastards, then you get lots of bastards with no moral compass. After all they look human and that's all that counts.