Peter Kenneth Bostrøm Lundin was born on February 15, 1972, in Roskilde, Denmark. He was the son of Ole Bostrøm Lundin and Anna Lundin, who was originally from Germany. Ole had moved from Canada to the United States in 1950 with the intention of joining the U.S. Army. He wanted to maintain his Danish citizenship, which was not possible in the Canadian Army. While in the U.S., he met Anna Schaftner in West Germany, and they eventually got married. They later settled in Denmark, where Ole worked as a bricklayer.

In 1979, Ole suffered a serious health issue, a blood clot that left him incapacitated. This affected the family financially, leading to their house facing foreclosure. After this, they decided to move to the United States with their 9-year-old son, Peter. They settled in Ormond Beach, Florida, where they operated a motel. The family moved again in 1984 to Maggie Valley, North Carolina, where they bought another house.

A few years later, Ole left Anna and took Peter with him. They moved around, first to Los Angeles, then to New York City and Boston, before finally settling in Miami, Florida. Ole eventually reconciled with Anna, and Peter began his schooling in Miami. There, he juggled various jobs, including working as a waiter. On Peter's 16th birthday, he left school to work as a bricklayer alongside his father.

During this time, he was introduced to drugs like cocaine and marijuana. The family then returned to Maggie Valley, where Peter resumed his education at the local high school. While in high school, he also began selling cannabis to his classmates.

Peter Kenneth Bostrøm Lundin committed his first murder when he was 19 years old. The victim was his mother, Anna Schaftner Lundin. The crime occurred around April 1, 1991. It is believed that a quarrel led to the incident. Anna wanted to cut Peter's long hair, and in the heat of the moment, Peter choked her. After the murder, he and his father, Ole, took her body to Buxton, a city in North Carolina, and buried her on the beach at Cape Hatteras.

Several months later, on November 1, 1991, a woman's body washed ashore near a lighthouse in Buxton. The body was wrapped in a blue blanket and covered with black plastic. Peter and Ole had fled to Canada shortly after the murder. However, they were arrested on June 6, 1992, in a hotel room in Toronto. In 1993, Peter was sentenced to 20 years in prison for the murder of his mother, while Ole received a 2-year sentence as an accomplice.

In 2000, after Peter Lundin had been released from prison and returned to Denmark, he committed a second series of murders. He became involved with Marianne Pedersen, a sex worker, who lived with her two sons, Dennis and Brian. On July 3, 2000, Marianne and her sons were reported missing. After an investigation, police found evidence of blood in their home, leading to Peter's arrest on July 5, 2000.

Further investigation revealed that after killing Marianne and her sons, Peter dismembered their bodies. He attempted to clean the crime scenes but left behind a lot of evidence, including blood stains that were discovered in various locations within the house. Peter claimed that he found the boys lying in the basement after hearing screams and that he killed Marianne in anger after a fight. However, forensic evidence did not fully support his story.

On March 15, 2001, after a trial, Peter Lundin was found guilty of intentional murder and manslaughter for the deaths of Marianne and her sons. He received a life sentence, while his father Ole was convicted of theft in connection to the case. The police had been criticized for not properly monitoring Peter after his earlier release from prison, which led to public outcry and political discussions about how to handle such dangerous individuals after their release.