Gary Leon Ridgway is an American serial killer known as the Green River Killer. He was initially convicted of 48 separate murders committed between the early 1980s and late 1990s. 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.
Christopher Bernard Wilder, also known as the Beauty Queen Killer and the Snapshot Killer, was an Australian-American serial killer who abducted at least twelve young women and girls, killing eight of them during a six-week, cross-country crime spree in the United States in early 1984. Wilder's series of murders began in Florida on February 26, 1984, and continued across the country through Texas, Oklahoma, Colorado, Nevada and California, with attempted abductions in Washington and New York. Wilder victimized attractive young women, most of whom he would entice by promising to take their pictures. After subduing them, he would torture and rape them before shooting, stabbing with a knife, or strangling them to death. Two or more of his victims were electrocuted using a makeshift electrical cord.
Tammy Jo Alexander was an American teenage girl who was found murdered in the village of Caledonia, New York, on November 10, 1979. She had been fatally shot twice and left in a field just off U.S. Route 20 near the Genesee River after running away from her home in Brooksville, Florida, earlier that year. For more than three decades, she remained unidentified under the names Caledonia Jane Doe or Cali Doe until January 26, 2015, when police in Livingston County, New York, announced her identity 35 years after her death.
Steven Gerald James Wright is an English serial killer, also known as the Suffolk Strangler. He is currently serving life imprisonment for the murder of five women who worked in Ipswich, Suffolk. The killings took place during the final months of 2006 and Wright was found guilty in February 2008 and given a whole life order.
John William Cooper is a Welsh serial killer. On 26 May 2011, he was given a whole life order for the 1985 double murder of siblings Richard and Helen Thomas, and the 1989 double murder of Peter and Gwenda Dixon. The murders were known in the media as the "Pembrokeshire Murders" or the "Coastal Murders". Cooper was also sentenced for the rape of a 16-year-old girl and a sexual assault on a 15-year-old girl, both carried out while a group of five teenagers were held at gunpoint in March 1996, in a wooded area behind the Mount Estate in Cooper's hometown of Milford Haven, Pembrokeshire.
The Bear Brook murders are female American murder victims, two discovered in 1985 and two in 2000, at Bear Brook State Park in Allenstown, New Hampshire, United States. All four of the victims were either partially or completely skeletonized; they were believed to have died between 1977 and 1981.
Marcia Lenore Sossoman King was a 21-year-old Arkansas woman who was murdered in April 1981 and whose body was discovered in Troy, Ohio approximately 48 hours after her murder. Her body remained unidentified for almost 37 years before being identified via DNA analysis and genetic genealogy in April 2018. King was one of the first unidentified decedents to be identified via this method of forensic investigation.
Sherri Ann Jarvis was an American murder victim from Forest Lake, Minnesota whose body was discovered in Huntsville, Texas on November 1, 1980. Her body was discovered within hours of her sexual assault and murder, and remained unidentified for 41 years before investigators announced her identification via forensic genealogy in November 2021.
Tammy Corrine Terrell was an American murder victim from Roswell, New Mexico. Her body was discovered on October 5, 1980, in Henderson, Nevada, and remained unidentified until December 2021. Her case has been the subject of extensive efforts by investigators and has been highlighted as inspiring other work to solve cold cases of unidentified murder victims.
John Ingram Brandenburg Jr. and Keith Lavell Bibbs were two young murder victims formerly known as the Newton County John Does whose remains were discovered by mushroom foragers in Lake Village, Newton County, Indiana, on October 18 and 19, 1983. Both victims were discovered alongside two other murder victims whose bodies were identified within months of their discovery. All four were victims of serial killer Larry Eyler.
The Redhead murders is the media epithet used to refer to a series of unsolved homicides of redheaded females in the United States between October 1978 and 1992, believed to have been committed by an unidentified male serial killer. The murders believed to be related have occurred in states including Tennessee, Arkansas, Kentucky, Mississippi, Pennsylvania, and West Virginia. The murders may have continued until 1992. The victims, many remaining unidentified for years, were usually women with reddish hair, whose bodies were abandoned along major highways in the United States. Officials believe that the women were likely hitchhiking or may have engaged in prostitution.
The Killing Season is an American true crime documentary television series which debuted on November 12, 2016, on A&E. Executive produced by Alex Gibney, the series follows documentarians Joshua Zeman and Rachel Mills as they explore the case of the Long Island serial killer and other unsolved cases such as the Eastbound Strangler, and the victims and investigations that have been connected to the cases. Some new investigating and interviewing is done during the series, including contacting members of internet amateur crime investigation group Websleuths.com, and following-up on their activities.
Parabon NanoLabs, Inc. is an American company based in Reston, Virginia, that develops nanopharmaceuticals and provides DNA phenotyping services for law enforcement organizations.
GEDmatch is an online service to compare autosomal DNA data files from different testing companies. It is owned by Qiagen.
Samuel Little was an American serial killer of women who was convicted of eight murders and confessed to committing 93 murders between 1970 and 2005. The Federal Bureau of Investigation's Violent Criminal Apprehension Program has confirmed his involvement in at least 60 murders, the largest number of confirmed victims for any serial killer in American history. Little provided sketches for twenty-six of his victims although not all have been linked to known murders.
DNA Doe Project is an American nonprofit volunteer organization formed to identify unidentified deceased persons using forensic genealogy. Volunteers identify victims of automobile accidents, homicide, and unusual circumstances and persons who committed suicide under an alias. The group was founded in 2017 by Colleen M. Fitzpatrick and Margaret Press.
Joseph William Kappen, also known as the Saturday Night Strangler, was a Welsh serial killer who committed the rape and murder of three teenage girls in Llandarcy and Tonmawr, near his home town of Port Talbot, in 1973. Kappen is also suspected of committing a fourth murder in February 1976.
Chris Clark is a British amateur crime writer who writes chiefly about serial killers and their supposed links to unsolved crimes. He is a retired police intelligence officer who worked in the King's Lynn area for Norfolk Police, although his career was somewhat unsuccessful and he had three applications to join the new National Criminal Intelligence Service rejected in 1993, with the commanding officers unimpressed by his record and applications. In 2022, his book Yorkshire Ripper: The Secret Murders, which was jointly written with journalist Tim Tate and alleged links between Peter Sutcliffe and unsolved murders, was made into an ITV prime-time documentary series of the same name.
Carl Koppelman is an American professional accountant and unpaid volunteer forensic sketch artist. Since 2009, Koppelman has drawn over 250 reconstructions and age progressions of missing and unidentified people.
