DNA profiling is the process of determining an individual's deoxyribonucleic acid (DNA) characteristics. DNA analysis intended to identify a species, rather than an individual, is called DNA barcoding.
The Boston Strangler is the name given to the murderer of 13 women in Greater Boston during the early 1960s. The crimes were attributed to Albert DeSalvo based on his confession, on details revealed in court during a separate case, and DNA evidence linking him to the final victim.
A cold case is a crime, or a suspected crime, that has not yet been fully resolved and is not the subject of a current criminal investigation, but for which new information could emerge from new witness testimony, re-examined archives, new or retained material evidence, or fresh activities of a suspect. New technological methods developed after the crime was committed can be used on the surviving evidence for analysis often with conclusive results.
A rape kit or rape test kit is a package of items used by medical, police or other personnel for gathering and preserving physical evidence following an instance or allegation of sexual assault. The evidence collected from the victim can aid the criminal rape investigation and the prosecution of a suspected assailant. DNA evidence can have tremendous utility for sexual assault investigations and prosecution by identifying offenders, revealing serial offenders through DNA matches across cases, and exonerating those who have been wrongly accused.
Juana Dayanara Barraza Samperio is a Mexican serial killer and former professional wrestler dubbed La Mataviejitas sentenced to 759 years in prison for the killing of 16 elderly women. The first murder attributed to Mataviejitas has been dated variously to the late 1990s and to a specific killing on 17 November 2003. The authorities and the press have given various estimates as to the total number of the Mataviejitas victims, with estimates ranging from 42 to 48 deaths. After the arrest of Juana Barraza the case of the Mataviejitas was officially closed despite more than 30 unresolved cases. Araceli Vázquez and Mario Tablas were also arrested in 2005 and called by police and media The Mataviejitas.
Mark Goudeau is an American serial killer, kidnapper, thief and rapist. Goudeau terrorized victims in the Phoenix metro area between August 2005 and June 2006; coincidentally, Goudeau was active at the same time as two other Phoenix serial killers, jointly known as the "Serial Shooters.”
Delroy Easton Grant is a Jamaican-born British convicted serial rapist who carried out a series of offences of burglary, rape and sexual assault between October 1992 and May 2009 in the South East London area of England. Grant, also known as the Minstead Rapist and latterly the Night Stalker, is thought to have been active since 1990. He had a distinctive modus operandi, preying primarily on elderly women who lived alone. He is suspected of over 100 offences from 1990 to 2009.
Antoni Imiela was a German-born convicted serial rapist who grew up in County Durham, England. He was found guilty of the rape of nine women and girls, and the indecent assault, and attempted rape, of a 10-year-old girl whom he repeatedly punched and throttled. The crimes took place in Surrey, Kent, Berkshire, London, Hertfordshire and Birmingham, and the press dubbed the offender the M25 Rapist after the M25 motorway that passes in the vicinity of all those areas except Birmingham. He died in HM Prison Wakefield on 8 March 2018.
The World's End Murders is the colloquial name given to the murder of two girls, Christine Eadie, 17, and Helen Scott, 17, in Edinburgh, in October 1977. The case is so named because both victims were last seen alive leaving The World's End pub in Edinburgh's Old Town. The only person to stand trial accused of the murders, Angus Robertson Sinclair, was acquitted in 2007 in controversial circumstances. Following the amendment of the law of double jeopardy, which would have prevented his retrial, Sinclair was retried in October 2014 and convicted of both murders on 14 November 2014. He was sentenced to life imprisonment with a minimum term of 37 years, the longest sentence by a Scottish court, meaning he would have been 106 years old when he was eligible for a potential release on parole. He died at HM Prison Glenochil aged 73 on 11 March 2019. Coincidentally, he died on the same day the BBC's Crimewatch Roadshow programme profiled the murders.
Timothy Wilson Spencer, also known as The Southside Strangler, was an American serial killer who committed three rapes and murders in Richmond, Virginia, and one in Arlington, Virginia, in the fall of 1987. In addition, he is believed to have committed at least one previous murder, in 1984, for which a different man, David Vasquez, was wrongfully convicted. He was known to police as a prolific home burglar.
John Floyd Thomas Jr. is an American serial killer, serving a life sentence without the possibility of parole for the murders of seven white women in the Los Angeles area during the 1970s and 1980s. Police suspect Thomas committed 10 to 15 more murders.
Colette Aram was a 16-year-old British trainee hairdresser who was abducted, raped and strangled as she walked from her home to her boyfriend's house in Keyworth, Nottinghamshire, on 30 October 1983. The murder was the first case to be featured on the BBC television series Crimewatch when it began in June 1984. However, despite receiving over 400 calls as a result of the programme, Nottinghamshire Police were unable to catch the killer, and it was not until 2008 and following advances in forensic technology that police were able to develop a DNA profile of the suspect. Paul Stewart Hutchinson was finally charged with the murder in April 2009. He initially pleaded not guilty, but changed his plea to guilty on 21 December 2009 and was sentenced to life imprisonment on 25 January 2010. Following his sentencing, Crimewatch ran a recap of the murder and investigation on BBC TV on 27 January 2010 exposing several inaccuracies reported in the press about his background, notably a lie about being a psychology graduate.
Teresa Elena De Simone was murdered in Southampton, England, in 1979. Her murder led to one of the longest proven cases of a miscarriage of justice in English legal history. The murder occurred outside the Tom Tackle pub and was the subject of a three-year police investigation which resulted in the arrest of Sean Hodgson. Hodgson was convicted of the murder by a unanimous jury verdict in 1982 and was sentenced to life imprisonment. After serving 27 years in prison he was exonerated and released in March 2009. DNA analysis of semen samples that had been preserved from the original crime scene showed that they could not have come from him.
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.
Glove prints, also sometimes described as gloveprints or glove marks, are latent, fingerprint-like impressions that are transferred to a surface or object by an individual who is wearing gloves.
Contaminated evidence is any foreign material that is introduced to a crime scene after the crime is committed. Contaminated evidence can be brought in by witnesses, suspects, victims, emergency responders, fire fighters, police officers and investigators.
Michèle Kiesewetter, a German police officer, was killed by neo-Nazi terrorists. On the 25 April 2007, Kiesewetter and her partner were on patrol in their police car. At approximately 2:00 p.m., they stopped in a corner of a large parking lot in Heilbronn to have a lunch break. Shortly after, both officers were ambushed and shot in the head by two gunmen, approaching from behind the vehicle. Kiesewetter, sitting in the driver's seat, was fatally injured. Her partner, sitting in the passenger's seat, was badly injured, but survived the attack. When the police and the ambulance arrived on the scene, both officers were lying on the ground, next to their car, and their handguns and handcuffs were stolen. The gunmen have also been implicated with the murders of nine other people, most with Turkish roots, between 2000 and 2006, the so-called NSU murders.
Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene. Specialists in this field try to link bullets to weapons and weapons to individuals. They can raise and record obliterated serial numbers in an attempt to find the registered owner of a weapon and look for fingerprints on a weapon and cartridges.
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.
The murder of Elizabeth McCabe was the infamous murder of a 20-year-old woman in Dundee, Scotland in February 1980. The case is one of Scotland's most notorious unsolved murders, and led to one of Scotland's largest manhunts. McCabe had disappeared after a night out at Teazer's Disco in Dundee city centre, and was found strangled to death two weeks later in Templeton Woods on the outskirts of the city. This was only 11 months after another woman, 18-year-old Carol Lannen, had been found dead only 150 yards away in the same woods, leading to the killings being labelled the Templeton Woods murders in the press and causing many to fear that there was a serial killer at large in the city at the time, although police have not linked the murders.
