Lettres d'amour à un tueur en série

This narrative style adds an intense personal touch and a sense of intimacy. I'm curious whether this was a conscious choice from the start or evolved during writing.

The character's actions are disturbing but also compelling. Did this evoke empathy or discomfort for others reading it?

Balancing character depth with sensitivity must have been tricky. I wonder what the creative process was behind that depiction.