Many murder cases cannot be solved despite the best efforts of the police, especially in the past where technology was limited or not yet sophisticated. However, with the development of DNA technology, some of these cases were eventually resolved.
DNA is present in every single cell of the human body and can be traced in a number of ways, including through saliva, blood and sweat. Everyone inherits 50% of their DNA from their biological mother and 50% from their biological father. Here are some old cases in the United States, which were finally solved after DNA technology was discovered, we quoted from various sources:
The murder of Deana Bowdoin in 1978
In 1978, Deana Bowdoin's body was found by her boyfriend in bed. His neck was tied with a belt. Investigators found DNA on her underwear, but were unable to link it to anyone.
Thanks to the evolution of DNA and forensic science, investigators were able to solve this case more than 20 years later. The DNA from the crime scene turned out to be that of Wayne Dixon, a man who was already in prison. This case is known as one of the first old crimes to be solved by DNA technology.
Patricia Beard's murder in 1981
Patricia Beard, a mentally challenged young woman, was raped and strangled in her apartment in 1981. She was found in her bed.
This high-profile case was not solved until July 2013, when DNA evidence from the crime scene was entered into a database and matched the DNA of a man named Hector Bencomo-Hinojos. He denies knowing the victim, but DNA evidence clearly shows he abused her before his death.
The murder of Cyrus Jefferson in 1986
Cyrus Jefferson's body was found in a field in 1986. A suspect named Stacy Littleton was arrested after the clues of several witnesses. However, there was insufficient evidence against Littleton, and the case was abandoned.
Investigators decided to look into the case in 2017, and a black glove was visible in the crime scene photos. The gloves were tested for DNA evidence and matched the DNA of the original suspect, Stacy.
Murder of 3 prostitution in 1990
In 1990, three prostitutes were shot dead in Spokane, Washington. Police investigators concluded that the three murders were linked, but they were unable to solve the case at the time.
In 2005, DNA evidence from the case was entered into a database, leading to the arrest of Donna Perry in 2013. Perry used to be named Douglas Perry, but he changed gender in 1990.
The murder of Angela Kleinsorge in 1992
In 1992, a woman named Angela Kleinsorge was raped and murdered in her home. He is 84 years old. Even though there was a DNA test, the case was dismissed due to a lack of evidence.
But in 2012, a retired detective decided he wasn't going to give up on the case. This time, there was a partial DNA match that led to a convict who turned out to be the brother of the killer, Jeffrey Falls, who died in a 2006 motorcycle crash.