Dog 'Em — Lawrence Christopher

The Mick Hart Investigation Agency began by their finding deadbeat child supporters. Mick and his staff have gotten so good at their job that on occasion they will take on a missing-person case. If they can find a person who is hiding, then how hard is it to find someone who is lost?
The elderly aunt of Amanda Monroe hires Mick Hart to find her niece, who had been missing for two weeks. Mick starts all of his missing-person cases by searching the city's morgue. He considers it a good omen not to find the person as an unclaimed corpse. He doesn't find Amanda in the morgue; instead there are two African American Jane Does who were found brutally raped and beastly murdered.
Mick finds Amanda Monroe comatose in Have Mercy Hospital after being left for dead by the same attacker of the Jane Does. Amanda has the same odd injuries and beastly wounds, which Mick connects to the other women. Another commonality between the murdered victims and Amanda, they all belong to the SOEL "Sistahs of Empowering and Learning" Book Club. Their latest book read, "How to Train the Dog in Your Black Man." The best-selling book's author, Chiquita Ali-Shakir is in town on tour, and so is the killer.
Mick doesn't consider his missing person's case closed until he finds the murderer. Hart's search for the serial killer takes a bizarre and dogged out turn, where the killer tries to dog him out.