I admit this theory has crossed my mind more and more in the last decade. unexplained evil. Such as the canibal guy in florida. or the guy in pennsylvania who was anormal guy his whole life and one day guns down a whole school of amish girls? over and over we are hearing about perfectly normal people who just do unexplainable evil....Most times though they either commit suicide or are killed. It will be interesting to see what comes of this guy.
This is why I always think of what Paul said in his famous “putting on the armor of God” teaching, because he knew there were forces that are from the darkness.