Mental Profile - Psychopathy

Gary Ridgway, known as the “Green River Killer,” is an American serial killer responsible for the murders of dozens of women in Washington State during the 1980s and 1990s. He targeted vulnerable individuals, often sex workers and runaways, and became one of the most prolific serial killers in U.S. history. Ridgway evaded capture for nearly two decades before advances in DNA technology led to his arrest in 2001. He later pleaded guilty to multiple counts of murder and received numerous life sentences, ensuring he would remain imprisoned for the rest of his life.

Thayne Ormsby is an American man convicted of a 2010 triple homicide in Maine. At the age of 20, he carried out a violent attack resulting in multiple deaths within a single incident. He was later arrested, convicted, and sentenced to life imprisonment without the possibility of parole.

James Toliver Craig, an Aurora, Colorado, dentist, murdered his wife of 23 years, Angela Craig, by poisoning her over a ten-day period in March 2023. Prosecutors established that Craig secretly obtained arsenic, cyanide and tetrahydrozoline while Angela repeatedly became seriously ill and required hospital treatment, ultimately administering a fatal dose of cyanide while she was hospitalised. Investigators uncovered internet searches about lethal and difficult-to-detect poisons, financial difficulties and extramarital affairs, while Craig later attempted to manufacture evidence supporting a suicide narrative and solicited the murder of the lead detective. A jury convicted him of first-degree murder and five solicitation charges in July 2025, and he was sentenced to life imprisonment without the possibility of parole.

Nicholas “Nick” Browning is an American man convicted of the 2008 murders of his parents and two younger brothers in Maryland. At the time of the offence, he was 15 years old and living in a suburban family environment. The case gained national attention due to the age of the offender and the deliberate nature of the killings. Browning was later convicted and sentenced to multiple life terms.

Charles "Chase" Merritt murdered his business associate Joseph McStay, Joseph's wife Summer, and their young sons Gianni and Joseph Jr. after financial problems developed around the water-feature business Merritt worked on with Joseph. The McStay family disappeared from their Fallbrook, California, home in February 2010, beginning a mystery that lasted more than three years until their remains were discovered in shallow graves in the Mojave Desert near Victorville. Financial records, cellphone evidence and other circumstantial evidence eventually focused the investigation on Merritt, who was arrested in 2014. A jury convicted him of four counts of first-degree murder in June 2019, and he was formally sentenced to death in January 2020.

Patrick Crusius is an American mass murderer responsible for the 2019 El Paso Walmart shooting in Texas. The attack was premeditated and motivated by extremist ideological beliefs. He was arrested shortly after the incident and later convicted on multiple federal charges, receiving life sentences without the possibility of parole.

Daniel Krug is an American man convicted of the 2020 murder of his wife in Topeka, Kansas. The case became widely known due to the elaborate and sustained deception he created to conceal the crime, including fabricating a false stalker narrative to mislead investigators. He was later arrested, convicted, and sentenced to a lengthy term of imprisonment.

Damian Rzeszowski is a Polish man convicted in connection with a multiple homicide in Jersey, Channel Islands, in 2011. The incident involved the deaths of several members of his family and others in a single event. The case gained widespread attention due to the scale of the violence and the domestic context. Rzeszowski was later convicted of manslaughter on the grounds of diminished responsibility and sentenced to life imprisonment.