Mental Profile - Sadism

Brian Steven Smith is a South African-born convicted murderer who was found guilty of killing two Alaska Native women, Kathleen Jo Henry and Veronica Abouchuk, in Anchorage, Alaska. The case became known as the “Memory Card Murders” after a sex worker stole Smith's cellphone and discovered footage of Henry being tortured and killed. She copied the footage to an SD memory card and gave it to police, providing the breakthrough that connected Smith to the murders. Smith was convicted of all 14 charges against him in February 2024 and sentenced to 226 years in prison.

Clifford Robert Olson Jr., known as the "Beast of British Columbia," was a Canadian serial killer who murdered 11 children and teenagers in British Columbia between November 1980 and July 1981. His victims, eight girls and three boys, ranged from nine to 17 years old and were abducted from communities around Vancouver and the Lower Mainland. Olson was arrested in August 1981 after police surveillance caught him attempting to pick up two young hitchhikers. He pleaded guilty to 11 counts of first-degree murder in January 1982 and received 11 concurrent life sentences with no parole eligibility for 25 years. He remained imprisoned until his death from cancer in September 2011.

Arthur Frederick Goode III was an American serial killer and child molester who was convicted of murdering three boys in Florida during the 1970s and 1980s. His confirmed victims were 11-year-old Richard Belcher, 10-year-old Richard Hunsperger and 10-year-old David Oakes, all of whom were abducted, sexually assaulted and murdered. Goode was also investigated in connection with additional child disappearances and killings, but he was never convicted of those cases. He received death sentences for multiple murders and was executed in Florida's electric chair at Florida State Prison on April 5, 1987.

Ryan Derek Riggs murdered 25-year-old Rhonda "Chantay" Blankinship in Brown County, Texas, in May 2016 after abducting, sexually assaulting and killing her before abandoning her body in the cellar of an abandoned farmhouse. The case remained unsolved for 18 months until investigators used groundbreaking DNA phenotyping technology to generate a likeness of the suspect. Days after the image was released, Riggs stood before his church congregation and confessed to the murder before surrendering to police. In 2019, he pleaded guilty to capital murder and was sentenced to life imprisonment without the possibility of parole.

Albert Henry DeSalvo is best known for confessing to the infamous Boston Strangler murders, in which 13 women were killed in the Boston, Massachusetts, area between 1962 and 1964. Although he was never tried for those murders, modern DNA testing later linked him to the final victim, strengthening the case against him. DeSalvo was imprisoned for unrelated crimes and was murdered in prison in 1973.

Richard Benjamin Speck became one of America's most infamous mass murderers after murdering eight student nurses during a single night in Chicago, Illinois, on July 13–14, 1966. The attack at a South Side townhouse generated worldwide attention and became one of the most notorious crimes in American history. Speck was convicted of eight counts of murder and sentenced to death, although his sentence was later commuted to imprisonment following changes to U.S. capital punishment laws. He died in prison in 1991.

Tommy Lynn Sells became one of America's most infamous serial killers after murdering victims across numerous states over nearly two decades. Nicknamed the "Coast-to-Coast Killer," Sells confessed to dozens of murders, although investigators have verified only a portion of his claims. He was convicted of the 1999 murder of 13-year-old Kaylene Harris in Texas and sentenced to death. Sells was executed in 2014.

Wayne Clifford Boden became one of Canada's most infamous serial killers after sexually assaulting and murdering four women in Montreal, Quebec, between 1969 and 1971. Dubbed the "Vampire Rapist" by the media because he bit several victims during the attacks, Boden became one of the first Canadian killers to be convicted using bite-mark evidence. He was sentenced to life imprisonment and remained incarcerated until his death in 2006.