How is the modern murderer different from a murderer of the past? How has modernity contributed to that difference?

The modern murderer is quite different from the murderer of the past because the modern one dehumanizes his victim. He changes his victim into an object. In the past, the weapons - knife, bow and arrow, sword - made the victim's death personal. A murderer saw the man he was killing. The modern killer however, turns his victim into an object before killing him. If he chooses, he puts the victim in a concentration camp or tortures him. Quality of life does not matter when someone is dealing with objects or utensils, so there is not a reason to keep a man alive if the killer prefers him dead. In the dehumanization of modern life, murder has become much easier on the conscience.