No Further Event Killers

John Cole became one of the United Kingdom's most reviled child killers after murdering five-year-old Logan Mwangi alongside his stepfather, Angharad Williamson, in Bridgend, South Wales, in 2021. Logan suffered prolonged abuse before being fatally assaulted and his body was abandoned in a nearby river. Following a high-profile trial, Cole was convicted of murder despite being only 14 years old at the time of the offence, making him one of the youngest people convicted of murder in modern Welsh criminal history.

John Franklin Howard is an American man convicted in connection with an attempted murder-for-hire plot against his wife in Texas. The case gained attention due to the level of planning and the use of a hired attacker. He was later convicted and sentenced to life imprisonment.

John Asher Farrell Villarreal became known in American criminal history after the murders of a Texas couple who stopped to help him while he was hitchhiking on Christmas Eve in 2014. Prosecutors alleged Villarreal repaid the victims' kindness with extreme violence, killing both occupants before stealing their vehicle and attempting to evade capture. The case attracted significant attention because of the apparent randomness of the attack and the betrayal involved. Investigators argued the victims had no prior connection to Villarreal and had simply offered assistance to a stranger. The murders shocked the local community and became a tragic example of a good Samaritan encounter ending in deadly violence.

Henry Jonathan Valencia, often referred to as Jonathan Valencia, became known in true crime coverage after the murder of teenager Nosiah Santos during a public confrontation that prosecutors described as emotionally charged and deeply personal. Investigators alleged the killing stemmed from a secret relationship, escalating jealousy, and mounting tension between the two young men before the fatal shooting occurred. The case generated major online attention because portions of the confrontation and aftermath were captured on surveillance footage and witness recordings. Prosecutors argued Valencia intentionally targeted Nosiah Santos during the encounter before opening fire in front of witnesses. The combination of hidden relationship allegations, emotional conflict, and public violence turned the case into a heavily discussed modern youth homicide prosecution.

Joran van der Sloot became internationally infamous after years of deception, manipulation and violent criminal behavior connected to multiple international investigations. Long before receiving a murder conviction in Peru, van der Sloot had already become one of the most recognizable criminal suspects in the world due to his constant media appearances, contradictory statements and apparent obsession with controlling public narratives surrounding himself. Van der Sloot developed a reputation as a pathological liar who repeatedly exploited media attention, manipulated investigators and inserted himself into global headlines for nearly two decades. His later murder conviction and extortion schemes cemented his image as a narcissistic and dangerous offender whose crimes extended far beyond a single homicide investigation.

Joseph James DeAngelo, known as the "Golden State Killer," became one of the most infamous serial offenders in American history after committing a series of murders, rapes, and burglaries across California between 1974 and 1986. A former police officer, DeAngelo evaded identification for more than 40 years before investigators used investigative genetic genealogy to identify and arrest him in 2018. His case transformed modern criminal investigations and demonstrated the power of forensic DNA technology in solving long-unsolved crimes.

Joseph Kerekes was convicted of conspiring with Harlow Cuadra to murder Bryan Kocis, the founder of Cobra Video, in January 2007. Prosecutors established that the pair killed Kocis inside his Pennsylvania home as part of a plan to seize control of Cobra Video and profit from the career of Sean Lockhart, better known by his stage name Brent Corrigan, whose contract with Kocis had become the centre of a bitter legal dispute. A lengthy investigation involving DNA evidence, financial records and witness testimony ultimately exposed the conspiracy. Kerekes was convicted of first-degree murder, conspiracy and related offences in 2011 and sentenced to life imprisonment without the possibility of parole.

Julian Knight became one of Australia’s most notorious mass killers after carrying out the Hoddle Street massacre in Melbourne, Victoria, on August 9, 1987. Armed with multiple firearms, Knight opened fire on motorists and pedestrians along Hoddle Street, killing seven people and injuring numerous others in one of the deadliest mass shootings in Australian history at the time. The massacre shocked the nation and permanently altered public discussion surrounding gun control, mass violence, and offender psychology in Australia. Knight’s age, military background, and apparent emotional instability became major focuses during the investigation and trial. The case remained deeply embedded in Australian criminal history and later contributed to broader national debates surrounding firearm access and responses to mass casualty attacks.