Are these some of America's most famous serial killers?

"The Khmer Rouge system does not allow for peaceful replacement," said Mr. Chandler. How did these serial killers murder their victims? The murders took place on August 8–9, 1969, in Los Angeles. Cullen was arrested in 2003 and sentenced to 127 years in prison. It's Cambodia, so nobody gives a hoot.". Described as good-natured but intellectually incurious as a boy, he was sent to France in 1949 to study electrical engineering and there fell under the sway of the French Communist Party. Three killed by stabbing, four by gunfire including the shooter, Seven injured by gunfire, seven struck by vehicle, List of mass shootings in the United States in 2020, List of mass shootings in the United States in 2019, University of North Carolina at Charlotte shooting, University of North Carolina at Charlotte, List of mass shootings in the United States in 2018, Fort Lauderdale–Hollywood International Airport, 2016 shooting of Baton Rouge police officers, Colorado Springs Planned Parenthood shooting, Shooting of protesters at a Black Lives Matter protest, Emanuel African Methodist Episcopal Church, 2013 Los Angeles International Airport shooting, Ross Township Municipal Building shooting, Safeway Shooting in Casas Adobes, Arizona (2011), University of Alabama in Huntsville shooting, List of mass shootings in the United States (2000–2009), 2009 Shooting of Pittsburgh Police Officers, Youth with a Mission and New Life Church shooting, Crandon, Wisconsin, duplex shooting (2007), Los Angeles International Airport shooting, List of mass shootings in the United States (1900–1999), Los Angeles Jewish Community Center shooting, Aurora, Colorado, Chuck E. Cheese shooting, Lindhurst High School Shooting and Hostage Situation (1992), Killeen, Texas, Luby's Restaurant shooting, Pacific Southwest Airlines Flight 1771 (1987), California State University, Fullerton, shooting, North Carolina Agricultural and Technical State University, 1954 United States Capitol Shooting Incident, List of school shootings in the United States by death toll, List of school shootings in the United States, List of unsuccessful attacks related to schools, Mass shootings in the United States#Deadliest mass shootings since 1949, List of rampage killers in the United States, "The vague definition of 'mass shooting' complicates media coverage", "Public Mass Shootings in the United States", "More than 50 years of U.S. mass shootings: The victims, sites, killers and weapons", "Virginia Beach Gunman Said He Was Quitting, Then Went on a Shooting Rampage", "At least 8 people injured, 2 suspects in custody after shooting at Colorado STEM school", "Two dead after shooting on campus of the University of North Carolina at Charlotte", "San Diego synagogue shooting: one dead and three", "Gunman kills 5, including parents, in Louisiana shooting spree, police say -- live updates", "At least 5 people killed at SunTrust Bank in Sebring, Florida, police say", "4 dead, including Chicago officer, after Mercy Hospital shooting", "US police kill black security guard 'hero, "Mass shooting at Borderline Bar and Grill in Thousand Oaks, California", "Florida yoga studio shooting: Two killed and four injured", "8 dead, 4 officers among injured in Pittsburgh synagogue mass shooting: Officials", "11 Dead, Several Others Shot At Pittsburgh Synagogue", "Suspect in shooting of 7 officers in South Carolina is competitive rifleman who served in Vietnam", "Woman who killed 3 people at Rite Aid center was a disgruntled worker", "3 killed, suspect dead after shooting in Cincinnati's Fountain Square, police chief says", "Shooting suspect at video-game event at Florida mall killed at least 2 people and is believed to be from Baltimore, authorities say", "Gunman among 3 dead in mass shooting at Jacksonville Landing", "5 People Dead in Shooting at Maryland's Capital Gazette Newsroom", "Five dead in 'targeted attack' at Capital Gazette newspaper in Annapolis, police say; 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But virtually no one who has closely studied the group in recent years, diplomats and scholars alike, believes it. The compound, "Office 87," ringed by Thai and Khmer Rouge soldiers, became Pol Pot's base for his insurgency against the government installed by Vietnam in Phnom Penh.

The precise inclusion criteria are disputed, and there is no broadly accepted definition.
In February of that year, he confessed to police after they discovered that human remains blocking drains in his apartment building had come from his apartment.

He was sentenced to life in prison without parole for 25 years.