Robert Leroy Anderson

Robert Leroy Anderson (December 4, 1969 – March 30, 2003), known as the Duct Tape Killer, was an American murderer, rapist, and self-proclaimed serial killer who was sentenced to death in South Dakota for the murders of Larisa Dumansky and Piper Streyle in 1994 and 1996, respectively. Anderson remained on death row for nearly four years before committing suicide by hanging in 2003. Many believe Anderson would have continued to kill more women had he not been caught. In 2020, a book called, Duct Tape Killer: The True Inside Story of Sexual Sadist & Murderer Robert Leroy Anderson, was released, which revealed more information about Anderson's life and crime spree. While Anderson was still a boy, the family moved to Groton, where Anderson's younger sister was born. In 1976, the Anderson family returned to Sioux Falls and Anderson attended Hayward Elementary School. He later went to Washington High School.

Police initially were suspicious of Bill, accusing him of having an argument with his wife and causing her to run off. Police then turned their attention to another suspect, a coworker of Larisa's who was in prison and on work release. The man claimed he had looked for her on the night of August 27 but had been unable to find her. As a result, he hitched a ride with another coworker back to the prison, where he was recorded checking back in, providing him with a clean alibi. Authorities continued to search for clues but after finding nothing Larisa's case went cold.

On March 11, 1997, a woman named Amy Anderson (no relation) identified Robert Leroy Anderson as one of two men who had tried to abduct her on November 10, 1994. Amy Anderson claimed on the night in question that she was nearly abducted by two men in a maroon car, one of whom was Robert Leroy Anderson.

On May 8, 1997, Anderson was convicted of kidnapping Streyle with the intent to commit rape.

On May 20, 1997, not long after Anderson was convicted of Streyle's kidnapping, a man named Glen Marcus Walker, who was Anderson's lifelong friend, led law enforcement to a shallow grave site in McCook County near Lake Vermilion. The grave site contained shell casings and bone fragments. DNA testing was carried out and showed the bones were a genetic match to Larisa Dumansky. Police believe Anderson and Walker buried Dumansky in the grave. A few days later on May 30, police searched Anderson's mother's home but found nothing.

Anderson confided in Brunner because he wanted him to assist in a scheme of his in which he was hoping to frame someone else for the murders and have his former friend Walker killed. He gave Brunner a diagram of his mother's house and pointed to where personal items of Dumansky's and Streyle's could be found. He also pointed to the location of a gun. He also gave Brunner a description of Walker and a map with directions to his home so a hitman could murder him. On May 4, 1999, Anderson was formally sentenced to death.

Glen Marcus Walker, Anderson's lifelong friend, was arrested on August 22, 1998, on charges that he aided Anderson in abducting Dumansky and was involved in the attempted abduction of Amy Anderson.

Death On March 30, 2003, Anderson committed suicide by hanging at the South Dakota State Penitentiary in Sioux Falls. He was found hanging in a disciplinary cell just after 2:00 a.m. Prison staff began performing CPR but Anderson was pronounced dead at a Sioux Falls hospital a short time later. Anderson's father had also killed himself a few months prior from a self-inflicted gunshot wound to the head in December 2002.