Warren Hoyt Is the main killer in the first two Rizzoli and Isles novels The Surgeon and The Apprentice. Hoyt started out as the accomplice of serial rapist and killer Andrew Capra, spectating the rapes and murders of four women. Hoyt’s hosting, as far as traced in investigation, is as far back as medical school, when while in a university in Savannah, Georgia, a professor caught him masturbating over an eviscerated cadaver corpse. After beating Hoyt senseless, the professor dragged Hoyt in a back room and threatened Hoyt into dropping out. Capra somehow got in touch with Hoyt, and Hoyt tailed Capra in the Georgia spree.
Catherine Cordell, then another student, was the only surviving victim of Capra, a reason being one which scarred and scorned Hoyt for life. While Capra was raping Cordell, Cordell pulled out her personal gun and shot Capra in the flank. Capra was too cowardly to face jail time and pained by the shot, so Hoyt was begged by Capra a quick death out of mercy. Hoyt reluctantly shot Capra’s eye out and fled, never being found out and Cordell seeming like Capra’s killer. But that day, Hoyt swore revenge on Cordell over Capra’s defeat.
Killing three women in escalating serial killings emulating Capra, but not raping them, to eventually reach Cordell, Hoyt’s crimes were picked up on in the fourth murder, the second one in Boston, where Cordell was working. Thus, Cordell was tracked as well, being given police protection and being stalked. The fifth woman who was murdered was shown in a photo sent directly to Cordell. The police knew Hoyt attacked her because of the signature of transferring jewelry from the previous victim to the next one. She was found and still alive, rushed to the hospital immediately. But Hoyt, sneaking in disguised as a woman, pulled her plug and fled, gravely devastating Cordell.
After Cordell makes passionate love to detective Thomas Moore, Hoyt knocked her out with chloroform and abducted her to his lair. Rizzoli found out and rushed to rescue her, while she was already restrained and being sliced into by Hoyt. Rizzoli was lured down by forcing Cordell to scream before knocking her out and gagging her again. When Rizzoli found Cordell barely conscious, Hoyt knocked her down with a medical dish, pinned her hands with scalpels, and was ready to torture her as well. Cordell once again became the hero and used Rizzoli’s gun in the table within her reach to shoot Hoyt critically. Both women were saved, Cordell got engaged to Moore, and Hoyt recovered from the shot before being incarcerated.
But Hoyt soon after acquired his own admirer and apprentice, responsible for targeting couples, raping the wives, butchering the husbands, and abducting and killing the women to be raped later when they were already dead. The killer would be know as “The Dominator” and started the copycat killings in Bosnia, as revealed by FBI agent Gabriel Dean. Hoyt made a daring, murderous escape from the prison, with the help of the apprentice, and joined the spree. Kidnapping Rizzoli, the duo planned to torture her to death to revenge on her that time. But Rizzoli broke out of her bonds and, with the rescue of her colleagues, the apprentice was killed, Hoyt left almost completely paralyzed.