The Exorcist

1983 Simon Schuster hardcover, William Peter Blatty. One by one the bizarre murders frustrate and torment Lt. Kinderman, the homicide detective from The Exorcist. A boy, crucified; a priest, decapitated; another priest slain; a nurse, slaughtered all bear the Zodiac mark of the Gemini Killer. BUT ... the Gemini Killer has been dead for 12 years Lt. Kinderman stalks the brutal and elusive killer down the dark streets. Until, finally, in desperation he dares to cross the boundary that separates the living from the dead. - Goodreads The murder of a small boy, a deaf-mute, in a mock crucifixion puts detective William Kinderman on the trail of a series of brutal murders leading him to a deadly confrontation with the ultimate evil. When a detective investigates several murders, he uncovers a case of demonic possession.