The Map Murderer

WARNING! DEATH AND A LITTLE BIT OF BLOOD INSIDE! Might need to be PG/PG-13, unsure of which, help wanted!
Tina Cooper, known as Coops to her her fellow lead-finder Jax Roberts, won't give up when she finds a case that needs solving. She works harder than Scooby Doo working for two boxes of Scooby Snacks, as Jax would have jokingly said after coming in from seeing his young daughter who his ex wife won after their divorce.
She finds a lead on the most chilling case she has ever worked on, and she's hooked as she spots the similarities between the carvings on the bodies and the map of the city. It's a race against time for her and Jax to work it out and find the bodies that have yet to have been found and to find the killer before they kill someone else. Especially if that someone else is Jax's daughter.