No Further Event Killers

Jonathan Schmitz is an American convicted murderer who killed Scott Amedure in Lake Orion, Michigan, in March 1995, three days after the two men appeared together on The Jenny Jones Show. Schmitz, then 24, had agreed to appear on the program for a secret-admirer segment. During the taping, Amedure revealed that he had a same-sex crush on Schmitz. Schmitz later said he had expected the secret admirer to be a woman and felt humiliated by the revelation. The episode was never broadcast. Three days later, Schmitz went to Amedure's mobile home, confronted him about a suggestive note Amedure had left at Schmitz's residence, retrieved a 12-gauge shotgun from his vehicle and returned to the door. He shot Amedure twice in the chest, killing him. Schmitz immediately left and called 911, ultimately surrendering to police. He was initially convicted of second-degree murder in 1996 and sentenced to 25 to 50 years in prison. That conviction was overturned on appeal because of an error involving jury selection. Schmitz was retried in 1999 and again convicted of second-degree murder. He was once again sentenced to 25 to 50 years in prison. He was released on parole in August 2017 after serving approximately 22 years. The case became one of the most widely discussed examples of the controversy surrounding so-called "ambush television" and the responsibilities of daytime talk-show producers. A separate wrongful-death lawsuit brought by Amedure's family initially resulted in a $25 million verdict against the show's producers, but that judgment was later overturned by the Michigan Court of Appeals.

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.

Joshua Stimpson is an English convicted murderer who killed his former girlfriend, 23-year-old university student Molly McLaren, in Chatham, Kent, on June 29, 2017. Stimpson and McLaren had met through Tinder and had been in a relationship for approximately seven months. After McLaren ended the relationship, Stimpson began repeatedly contacting and following her. She reported his behaviour to police, who warned him to stay away from her. On the morning of the murder, Stimpson followed McLaren to the gym at the Dockside shopping centre. After she left and returned to her car, he attacked her with a kitchen knife, stabbing her more than 75 times. She died at the scene. Stimpson was arrested at the scene and later charged with murder. He initially admitted manslaughter on the grounds of diminished responsibility but denied murder. A jury at Maidstone Crown Court rejected his defence and convicted him of murder in February 2018. He was sentenced to life imprisonment with a minimum term of 26 years before parole consideration. His minimum term runs until 2044.

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.

Kalen Schlatter is a Canadian convicted murderer who killed 22-year-old Tess Richey after meeting her in Toronto's Church-Wellesley Village in November 2017. Schlatter accompanied Richey to a secluded outdoor stairwell, where prosecutors established that he sexually assaulted and strangled her before leaving her body concealed at the location. Richey's mother discovered her body several days later after conducting her own search. Schlatter was arrested in February 2018 and convicted of first-degree murder in March 2020. He was sentenced to life imprisonment with no possibility of parole for 25 years.