The List - A Vince Torelli Mystery, #4

A recently mutilated, naked corpse is found in an early 19th-century tunnel under San Francisco. With no forensic evidence, solving the crime seems impossible. After San Francisco Homicide Inspector Vince Torelli begins investigating, notes from the killer, addressed to him, start showing up. Vince realizes this murder may be the first of several, leading Vince on a deadly multi-state investigation.