About Thor Nis Christiansen
Lived 1957 – 1981 (aged 23). Thor Nis Christiansen was an American serial killer.
Thor Nis Christiansen (December 28, 1957 – March 30, 1981) was a Danish-American serial killer and necrophile from Solvang, California, who committed the murders of four women in southern California between 1976 and 1979. He committed his first three murders in Isla Vista, which motivated large demonstrations opposed to violence against women and in favor of better transportation for the young people residing in Isla Vista. He later attacked two further women in Los Angeles, killing one while the other escaped with a bullet in her head, and later identified him in a Los Angeles bar.
Early life Thor Nis Christiansen was born in Denmark, and immigrated to the United States with his parents when he was five years old. The family initially settled in Inglewood, California, and then moved to Solvang, where his father, Nis, ran a restaurant. Christiansen was a good student until his junior year of high school, when he began neglecting his schoolwork. He moved out of his parents' house, dropped out of school, and began working as a gas station attendant. During this time, Christiansen gained a great deal of weight, at one point weighing 275 pounds (125 kg).
Murders Christiansen's modus operandi was to pick up hitchhikers, shoot them in the head with a .22 caliber pistol, and sexually assault them post-mortem. His victims had long, straight hair, wore similar clothing, and had about the same build. Accordingly, the killings in Isla Vista were dubbed the "look-alike" murders.
On January 20, 1977, the body of Jacqueline Rook, 21, was found, shot in the head, in Refugio Canyon near Santa Barbara. She was last seen on November 20, 1976.
On May 22, 1977, the remains of Mary Sarris, 19, were discovered in a remote area near Los Alamos Canyon. She had been missing since December 6, 1976.
Arrest On July 27, 1979, after interviewing more than 115 people over the previous two years, police arrested Christiansen for the murders of Patricia Laney, Jacqueline Rook, and Mary Sarris. He was held in a Santa Barbara County jail on $500,000 bond. He caught the attention of investigators in February 1977, when he was cited for being a minor in possession of liquor. The citation noted that Christiansen had a .22 caliber pistol in his car, which was confiscated by the police. However, his arrest came about when Lydia Preston called investigators on July 11, 1979, stating she saw her attacker at a bar in Hollywood.
Trial On December 26, 1979, Christiansen entered a plea of "not guilty by reason of insanity," in addition to his previous "not guilty" plea. He was scheduled to stand trial in Los Angeles on February 4, 1980, for the 1977 murder of Laura Benjamin, and in Santa Barbara on March 17, 1980, for the Isla Vista murders.
Los Angeles trial Following a delay, on March 24, 1980, Christiansen withdrew his double plea in favor of a diminished capacity defense. However, on April 16, 1980, Christiansen was found guilty of first-degree murder and assault, after a psychiatrist testified that Christiansen displayed some degree of "provisional planning."
During the trial, a psychiatric evaluation of Christiansen revealed he suffered from an "intermittent explosive disorder," a paranoid personality, chronic drug use, and necrophilia. Christiansen also said he killed his victims, took them to a secluded place, unclothed them, and sexually explored their bodies. On May 14, 1980, Christiansen was sentenced to 25 years to life for the murder of Laura Benjamin, and 9 years for the attempted murder of Lydia Preston.
Santa Barbara trial To the prosecution's surprise, when the trial began on May 28, 1980, Christiansen pleaded guilty to all three counts of murder. The plea change came just weeks after the Los Angeles trial, where Christiansen was found sane by six out of at least seven psychiatrists. On June 18, 1980, Christiansen was sentenced to life in a maximum security prison.
Death On March 30, 1981, Christiansen died after being stabbed once in the chest while walking in the exercise yard at Folsom State Prison. His killer was not identified.
Aftermath Patricia Laney has become a prominent symbol for groups that advocate against violence to women in the Santa Barbara/Goleta/Isla Vista area. She had been a community volunteer with organizations that advocated against violence to women. The Isla Vista Juggling Festival has been held annually in her memory since 1977, and is still active as of 2024.
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Important facts
People in Thor Nis Christiansen's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Thor Nis Christiansen's
Frequently asked questions
Who was Thor Nis Christiansen?
American serial killer (1957-1981)
When was Thor Nis Christiansen born?
Thor Nis Christiansen was born on 28 December 1957 in Denmark.
When did Thor Nis Christiansen die?
Thor Nis Christiansen died on 30 March 1981 in Folsom State Prison.
What was Thor Nis Christiansen's occupation?
Thor Nis Christiansen was a serial killer.
What nationality was Thor Nis Christiansen?
Thor Nis Christiansen was American.
Sources & further reading
· Wikipedia: Thor Nis Christiansen
Cite this page
APA: Biography.guide. (2026). Thor Nis Christiansen. https://biography.guide/thor-nis-christiansen/
MLA: "Thor Nis Christiansen." Biography.guide, https://biography.guide/thor-nis-christiansen/.
Chicago: "Thor Nis Christiansen." Biography.guide. https://biography.guide/thor-nis-christiansen/.
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