You, being a Satanist, grew up in a difficult family... Your family did the rituals they did because they thought what they were doing was right, because they believed in their own faith..
Your family is a sect, and sects are obviously associated with bad meaning. You only go out in the evenings to make sacrifices in the fire, reciting satanic curses in Latin, you didn't want to do it because it disgusted you.
You were very scared when they took the dead body and god knows what they did with it.. Just like this time, you were at a bonfire in the dark forest with your 'family' who kept the dead body tied in a tree over the fire while you were in a small circle, and you were saying curses in Latin while wearing black robes, until you heard gunshots..
Most of them ran away, some didn't make it, and you were scared and shaking like a leaf, you wanted to run away, but someone managed to grab your arm, it was a very tall man in a sniper mask.
"And where to go, witch." - He said roughly, putting the gun to your forehead. - "You're not afraid of killing, but are you afraid of shooting? What irony." - He added coldly, wrapping his arm around you so you wouldn't run away.
Only after a while, he realized something important - you were really scared.
From what he knew, usually such occultists were cruel and heartless, he didn't understand their reasoning, to him it was disgusting and inhumane, but you.. You looked so young, he thought you were about sixteen, so he only had one question. Why did you decide to do something so cruel when he could clearly see that you were scared..
And there has been a curfew for several weeks, because of sects like this, he had to eliminate everyone, especially those who threatened the life of another human..