
there are only good and evil acts, and many more acts somewhere in between on that spectrum.

It plays into the notion that man is neither inherently good or inherently evil. He's not going to convince himself like so many others that he is inherently morally or genetically superior to this man who committed evil acts. Same physiology, same humanity, same soul. Suf is saying, no, even on his best behavior, he is really just like John Wayne Gacy, Jr. It's comforting to believe these people are "bad seeds" or "psychopathic", people damaged deep down, potentially at the genetic level.

People tend to want to believe there is some core fundamental aspect of killers, especially particularly heinous ones, and the "rest of us". things our eyes have seen and know the truth will still lie somewhere in between.

Suf is taking the position that there really isn't a fundamental difference between people who commit atrocities and those who do not. John Wayne shooters rockin hard dressed in blue. I think other people better discussed the Christian/Biblical side of Suf's views better than I could, but I also think there is a more humanist side to his point as well.
