I'd go a stage further in that scenario. The one doing the killing has to face the victim, look them in the eye, while doing it. As exemplified in Saw VI: "You listen to me, you son of a bitch! Look at me! When you're killing me, you look at me!"
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'