Classification - Mass Murderer

Erin Patterson became one of Australia’s most internationally discussed accused killers after allegedly poisoning multiple family members with deadly mushrooms during a lunch gathering in regional Victoria in 2023. The case generated extraordinary worldwide attention because of the unusual alleged murder method, the family dynamics involved and the mystery surrounding whether the poisonings were deliberate. The investigation rapidly became one of the biggest true crime stories in Australia, attracting nonstop media coverage, internet speculation and global fascination. The combination of toxicology evidence, alleged deception, suspicious behavior and courtroom developments transformed the case into one of the most discussed criminal prosecutions of the decade.

Austin Drummond became the focus of a massive manhunt after being accused of murdering four members of a Tennessee family in a brutal quadruple homicide case. Authorities alleged Drummond carried out the killings before abandoning a surviving infant connected to the victims, a detail that intensified national outrage and media attention surrounding the investigation. The horrifying nature of the crimes shocked communities across Tennessee as law enforcement agencies launched a widespread search operation to locate Drummond. Investigators described the suspect as armed and dangerous while prosecutors later outlined allegations involving execution-style killings, family targeting and efforts to evade capture following the murders.

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.

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.

Elliot Rodger was an American mass murderer responsible for the 2014 Isla Vista killings in California. He carried out a planned multi-location attack targeting individuals in a university community. He killed six people and injured others before dying by suicide at the scene.

Kyle Clifford is a British man convicted in connection with a 2024 triple homicide in Hertfordshire, England. The case involved the killing of multiple members of a family following the breakdown of a personal relationship. He was later convicted and received a whole-life sentence, meaning he will remain in prison for the rest of his life.

Marshella Chidester is an American woman convicted in connection with a fatal vehicle incident in Michigan in 2024. The event occurred when she drove into a building during a private gathering, resulting in multiple deaths and injuries. The case gained national attention due to the circumstances of the incident and the loss of young lives. Chidester was later convicted and sentenced to a lengthy prison term.