The Common Denominator in Killers

I went from being insanely jealous of you, to being an insane fan of a kid. I'm obsessed with this series that you did. There's something going on with Ted. I don't know what it is, but I feel like he's acting like a different person. What is the common denominator in murderers and women that get murdered? Like is there a way to not get murdered? Is that what you're asking?