Yep!! It's one thing to kill out of anger, and a quite different one to kill for no reason, killing strangers in large numbers, but individually. It is pretty inhuman, and as far as I know, was either a rarity or non-event in history past. Therefore, we have three distinct possible causes for this: Some sort of mind control, brain washing or other man created method of controlling the minds of others. The second possibility is that of demonic possession, where a person gives his soul over to the evil forces and allows him or herself to be used by Satan. Certainly possible, but we have never seen this kind of mass murder by demon-possessed people. There is the third possibility, that of mental derangement. But, although we have had madmen throughout history, none of them, and we are talking here about the psychotically deranged, have ever, to my knowledge gone on a rampage and killed twenty people. So, this puts the first theory in front of the others as the likely cause of this kind of behavior. Only since the mid-20th Century has this kind of control even been thought about. But now it is here. There are various programs that seek to control the minds of others, and one, the Voice of God seems to be able to send messages directly into the mind of their target person. This person then feels compelled to do what he or she is instructed to do. Those who control these poor subjects need to be found and punished for the crimes they are inspiring.