A serial killer is typically a person who murders three or more persons, usually in service of abnormal psychological gratification, with the murders taking place over more than a month and including a significant period of time between them. While most authorities set a threshold of three murders, others extend it to four or lessen it to two.
Gary Leon Ridgway, also known as the Green River Killer, is an American serial killer. He was initially convicted of 48 separate murders. As part of his plea bargain, another conviction was added, bringing the total number of convictions to 49, making him the second most prolific serial killer in United States history according to confirmed murders. He killed many teenage girls and women in the U.S. state of Washington during the 1980s and 1990s.
Dennis Lynn Rader is an American serial killer known as BTK, the BTK Strangler or the BTK Killer. Between 1974 and 1991, he killed ten people in Wichita and Park City, Kansas, and sent taunting letters to police and media outlets describing the details of his crimes. After a decade-long hiatus, Rader resumed sending letters in 2004, leading to his 2005 arrest and subsequent guilty plea. He is currently serving ten consecutive life sentences at the El Dorado Correctional Facility.
Joseph Paul Franklin was an American white supremacist and serial killer who engaged in a murder spree spanning the late 1970s and early 1980s.
The Snowtown murders were a series of murders committed by John Justin Bunting, Robert Joe Wagner and James Spyridon Vlassakis between August 1992 and May 1999, in and around Adelaide, South Australia. A fourth person, Mark Haydon, was convicted for helping to dispose of the bodies. The trial was one of the longest and most publicised in Australian legal history.
Cary Anthony Stayner is an American serial killer and the older brother of kidnapping victim Steven Stayner. He was convicted of the murders of four women between February and July 1999: Carole Sund, her teenage daughter Juli Sund and their teenage traveling companion Silvina Pelosso, and Yosemite Institute naturalist Joie Ruth Armstrong.
Tommy Lynn Sells was an American serial killer. He was convicted of one murder, for which he received the death penalty and was eventually executed. Authorities believe he committed a total of 22 murders.
Keith Hunter Jesperson is a Canadian-American serial killer who murdered at least eight women in the United States during the early 1990s. He was known as the "Happy Face Killer" because he drew smiley faces on his many letters to the media and authorities. Many of his victims were sex workers and transients who had no connection to him. Strangulation was Jesperson's preferred method of murdering, the same method he often used to kill animals as a child.
A copycat crime is a criminal act that is modelled after or inspired by a previous crime. It notably occurs after exposure to media content depicted said crimes, and/or a live criminal model.
David Parker Ray, also known as the Toy-Box Killer, was an American kidnapper, torturer, rapist and suspected serial killer. Though no bodies were found, Ray was accused by his accomplices of killing several women, and was suspected by the police to have murdered as many as sixty women from Arizona and New Mexico while living in Elephant Butte, approximately seven miles north of Truth or Consequences.
Timothy Wayne Krajcir is a convicted American serial killer from West Mahanoy Township, Pennsylvania who has confessed to killing nine women: five in Missouri and four others in Illinois and Pennsylvania.
Infamous Murders was a documentary television series shown on The History Channel in the U.S. and the U.K. The U.S. edition was narrated by Don Peoples. In the U.K. edition the narrator is uncredited.
Internet homicide refers to killing in which victim and perpetrator met online, in some cases having known each other previously only through the Internet. Also Internet killer is an appellation found in media reports for a person who broadcasts the crime of murder online or who murders a victim met through the Internet. Depending on the venue used, other terms used in the media are Internet chat room killer, Craigslist killer, Facebook serial killer. Internet homicide can also be part of an Internet suicide pact or consensual homicide. Some commentators believe that reports on these homicides have overemphasized their connection to the Internet.
Instinto Asesino is a series produced by Endemol Argentina for the Discovery Channel. Each episode portrays a notorious serial killer case that occurred in a country in Latin America. So far, cases depicted occurred in Argentina, Brazil, Chile, Colombia, Mexico and Venezuela.
Hadden Irving Clark is an American veteran murderer and suspected serial killer, currently serving two 30-year sentences at Eastern Correctional Institution in Westover, Maryland for the murders of 6-year-old Michelle Dorr in 1986, and 23-year-old Laura Houghteling in 1992. He was also given a 10-year sentence for robbery after stealing from a former landlord.
Israel Keyes was an American serial killer, bank robber, burglar, arsonist, kidnapper, rapist, and necrophile who murdered a minimum of three victims across the United States from June 2011 to February 2012. While awaiting trial, Keyes committed suicide by hanging, and slashing his wrists.
The Package Killer is the name attributed to an American serial killer who murdered between three and five women in the St. Louis area from 1990 to 1991. His pseudonym comes from the receptacles the victims were sometimes found in.
