What's wrong with me? Does anyone have explations?

i was watching a documentary about a serial killer. It is not the first time, I've watched so many documentaries before about different serial killers or about phenomenal events...

But this is the first time, i'm attracted to a serial killer. What he has done is so horrible and crual. However when he was interviewed and he was talking. I felt strange, and that I feel attracted to him physically. (I even imagined some innocent romantic scenarios)

I didn't pity him or anything. I'm glad that he was sentenced to death and whatever he has done is the most disgusting and horrible thing.

What's wrong with me? Does anyone have explations?
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