NATHAN Carnie doesn’t mind wading through the muck and filth of humanity.

For the last five years, he’s been busy reading and writing about the very worst of us, those so desperate and soulless they are driven to take the lives of others.

It’s what the Mildura-based author seemed destined to do.

“All my life, I've been interested in crime scene forensics, human anatomy, that sort of thi...