Question: What is the name of the American serial killer of the 19th century on which the 1974 psychological horror novel by Robert Bloch is based?

full_context: Document 1: Psycho (1960 film): Psycho is a 1960 American psychological horror film directed and produced by Alfred Hitchcock, and written by Joseph Stefano, starring Anthony Perkins, Janet Leigh, John Gavin, Vera Miles and Martin Balsam, and was based on the 1959 novel of the same name by Robert Bloch. The film centers on the encounter between a secretary, Marion Crane (Leigh), who ends up at a secluded motel after stealing money from her employer, and the motel's disturbed owner-manager, Norman Bates (Perkins), and its aftermath.
Document 2: Henry Lee Lucas: Henry Lee Lucas (August 23, 1936 – March 12, 2001) was an American serial killer who claimed to have killed over 3000 people; however, his confessions often contained inconsistencies or improbable logistics. Despite this, hundreds of cold cases were attributed to him and subsequently closed.
Document 3: Herman Hollis: Herman Edward "Ed" Hollis (January 1903 – November 27, 1934) was an American law enforcement official and Federal Bureau of Investigation (FBI) special agent. As an FBI special agent in the 1930s, Hollis worked with agents Melvin Purvis, Samuel P. Cowley and others fighting bank robbers, gangsters and organized crime in the Chicago area during the Great Depression. Hollis is best known for having been killed in the line of duty during an intense shootout with Chicago-area bank robber Lester Gillis, a.k.a. Baby Face Nelson, at the Battle of Barrington in 1934. Hollis was also one of the three FBI special agents who shot John Dillinger near the Biograph Theater earlier that year, resulting in Dillinger's death. One controversial account also implicates Hollis in the death of Pretty Boy Floyd. Hollis served as a special agent for the FBI's field offices in Kansas City, Cincinnati, and Chicago for over seven years; at the time of his death, he was 31 years old.
Document 4: Dean Corll: Dean Arnold Corll (December 24, 1939 – August 8, 1973) was an American serial killer who, along with teenaged accomplices David Brooks and Elmer Wayne Henley, Jr., abducted, raped, tortured, and murdered at least 28 boys in a series of killings spanning from 1970 to 1973 in Houston, Texas. The crimes, which became known as the Houston Mass Murders, came to light after Henley fatally shot Corll.
Document 5: American Gothic (2007 film): American Gothic is a 2007 drama-fantasy film written and directed by David Wexler. The film follows the lives of three vampires trying to get by in modern-day New York City.
Document 6: American Gothic Press: American Gothic Press is an American comic book imprint of "Famous Monsters of Filmland" magazine. Established in the spring of 2015, it focuses predominantly in the Kaiju, Sci-Fi, fantasy, and horror genres, reflecting Honorary "Famous Monsters" Editor-in-Chief Forrest J Ackerman’s love for all things monstrous and mysterious.
Document 7: Nightmare on the 13th Floor: The Wessex Hotel in Los Angeles is a Victorian hotel, built in 1898 at a height of 16 floors, including a 13th floor. Early in its history, serial killer Avery Block brings his friends to the 13th floor of the Wessex where he proceeds to kill them with a fire ax hoping to achieve immortality by the taking of others' lives. Due to the murders, the 13th floor is sealed off in October 1901 and a frieze is erected around the building covering the floor.
Document 8: Charles Cullen: Charles Edmund Cullen (born February 22, 1960) is a former nurse who is the most prolific serial killer in New Jersey history and is suspected to be the most prolific serial killer in American history. He confessed to authorities that he killed up to 40 patients during the course of his 16-year nursing career. But in subsequent interviews with police, psychiatric professionals, and journalists Charles Graeber and Steve Kroft, it became clear that he had killed many more, whom he could not specifically remember by name, though he could often remember details of their case. Experts have estimated that Charles Cullen may ultimately be responsible for 400 deaths, which would make him the most prolific serial killer in American history.
Document 9: Exquisite Corpse (novel): Exquisite Corpse is a horror novel by American writer Poppy Z. Brite. The protagonist of the story is Andrew Compton, an English convicted homosexual serial killer, cannibal and necrophiliac. Brite has described it as "a necrophilic, cannibalistic, serial killer love story that explores the seamy politics of victimhood and disease."
Document 10: Harvey Miguel Robinson: Harvey Miguel Robinson (born December 6, 1974) is an American serial killer who is a prisoner on death row in Pennsylvania. He is one of the youngest serial killers in American history. He was 18 years old when he was apprehended for his crimes. He is also the first serial killer in the history of Allentown, Pennsylvania.
Document 11: Rocket to the Morgue: Rocket to the Morgue is a 1942 American locked room mystery novel by Anthony Boucher (originally published as by "H. H. Holmes", Boucher's frequent pseudonym when writing mysteries or writing about mysteries, and the pseudonym of a 19th-century American serial killer).
Document 12: American Gothic (novel): American Gothic is a 1974 psychological horror novel by American writer Robert Bloch, a fictionalized portrayal of real life serial killer H. H. Holmes, who is renamed "G. Gordon Gregg" for the story.
Document 13: Jeffrey Dahmer: Jeffrey Lionel Dahmer (May 21, 1960 – November 28, 1994), also known as the Milwaukee Cannibal, was an American serial killer and sex offender, who committed the rape, murder, and dismemberment of seventeen men and boys between 1978 and 1991. Many of his later murders involved necrophilia, cannibalism, and the permanent preservation of body parts—typically all or part of the skeletal structure.
Document 14: H. H. Holmes: Herman Webster Mudgett (May 16, 1861 – May 7, 1896), better known under the name of Dr. Henry Howard Holmes or more commonly H. H. Holmes, was an American serial killer of the 19th century.
Document 15: Norman Bates: Norman Bates is a fictional character created by Robert Bloch as the main antagonist in his 1959 novel "Psycho", and portrayed by Anthony Perkins in the 1960 film of the same name directed by Alfred Hitchcock and its sequels. He is also portrayed by Vince Vaughn in the 1998 remake, and by Freddie Highmore in the television series "Bates Motel" (2013 - 2017) which retells the "Psycho" story over the years prior to the events of the novel and film. Unlike the franchise produced by Universal Studios, Norman is not the principal antagonist in Bloch's subsequent novels and is succeeded by copycat killers who assume Norman's identity after his death in the 1982 novel "Psycho II". The character was inspired by Wisconsin murderer Ed Gein.
ground_truth: H. H. Holmes