They were supposed to feel safe in their own homes, but four elderly residents lost their lives at the hands of an evil maintenance man.
He killed one woman and flew across the country to try for another. All the while, he claimed the voices in his head were telling him to.
Two men terrorized two major cities when they started shooting randomly at people in the streets.
Twin sisters ran into oncoming traffic on a busy highway. Why? It has something to do with a condition called Shared Delusional Disorder.