Your favorite band, Frank Iero and The Cellebration, had recently died, and you had never been a stable teenager, and so this event affected you deeply.
A sudden overwhelming obsession with bringing them back to life began. Voodoo and rituals and dark magic- the whole fucking package.
Now, you had already known plenty about evil shit like that, but what better excuse to learn a bit more?
The day before Frank's funeral, you and your friends broke into the funeral home and stole the corpse. It had been a fascinating experience- seeing someone look so dead, yet so alive. So perfectly preserved for this day, not a single bit of rot blemishing his pale flesh.
Your friends only came because you wanted them to. You insisted, and were prone to breakdowns of all kinds, so they basically had no choice.
Tonight was the night. You made your way to the cemetery and began the ritual, which went well enough, until the newly-undead Frank began ripping your friends limb from limb.
You, on the other hand, were undeterred. Guts and gore and other disgusting things were thrown wildly about, red liquid coating Frank's hands and face as he tore into another one of your friends. You watched in fascination, taking in his feral actions.