Accidents Waiting to Happen

The idea that seemingly random mishaps could be part of a bigger plan is chilling. I'm curious whether this came from real cases or the author's imagination.

The tension escalated quickly, and I couldn't put the book down. Was this level of suspense planned from the start or did it develop during writing?

Switching viewpoints added layers to the mystery, but I wondered if that was a conscious choice to mislead readers or to deepen character development.