Tana French said this quote

If you're good at this job, and I am, then every step in a murder case moves you in one direction: towards order. We get thrown shards of senseless wreckage, and we piece them together until we can lift the picture out of the darkness and hold it up to the white light of day, solid, complete, clear. Under all the paperwork and the politics, this is the job; this is its cool shining heart that I love with every fiber of mine. This case was different. It was running backwards, dragging us with it on some ferocious ebb tide. Every step washed us deeper in black chaos, wrapped us tighter in tendrils of crazy and pulled us downwards.