They solve a murder after 46 years thanks to the DNA found in a cup of coffee

The murder of Lindy Sue Biechler, of Pennsylvania, USA, was a mystery for 46 years. The young woman (19 years old) was found dead in her apartment on December 5, 1975 with 19 stab wounds, lying on her back with a knife protruding from her neck and with a kitchen towel wrapped around the handle.

During all this time, it was never known who had been the author of the crime; However, a new clue, found earlier this year, was used by investigators to accuse a subject and arrest him, reported the .

The cruel murder of Lindy Sue Biechler

According to the Lancaster County District Attorney’s office, Lindy was attacked 46 years ago after arriving from the supermarket. The shopping bags had been left on the dining room table.

Although the detectives conducted several investigations with multiple leads, most ended up being discarded; However, they found a test that changed everything.

The researchers were closely monitoring David Sinopoli, a 68-year-old subject who boarded a plane at Philadelphia International Airport in mid-February. In the place, he left his DNA in a cup of coffee that you used and threw away before traveling.

“This arrest marks the beginning of the criminal process in Lancaster County’s longest-running unsolved homicide case, and we hope it will bring some sense of relief to the victim’s loved ones and members of the community who for the past 46 years they had no answers,” District Attorney Heather Adams said in a press release.

David Sinopoli, suspected of committing the crime

To understand how Sinopoli came to be arrested, it is important to note that, in 1997, the Lancaster County District Attorney’s Office submitted evidence from the crime scene for DNA analysis. Back then, a male DNA sample was extracted from Biechler’s underwear.

In 2000, the sample was compared with the American database known as CODIS, which would be able to determine if there was a match with any registered offender; however, the analysis did not return any names. In those years, Sinopoli was not included in the system.

In 2019, the investigation resurfaced again after the Lancaster County District Attorney’s Cold Case Unit received support from Parabon NanoLabs to analyze DNA.

Thus, it was possible to identify Sinopoli, who became a suspect, but since he did not have his DNA, it was necessary to investigate further.

Due to the subject’s Italian ancestry, geographic and immigration patterns as well as associated surnames had to be analyzed. In this way, it was determined that the person linked to the DNA had ties to a city located in southern Italy.

“There were very few people living in Lancaster at the time of the crime who were the correct age and gender and had a family tree consistent with these origins, so this allowed me to prioritize candidates whose descent was determined to be exclusively from families with origins in Gasperina”, explained CeCe Moore, researcher at Parabon NanoLabs.

Arriving at this conclusion, Sinopoli began to be monitored and, when in February they managed to obtain his DNA by drinking the cup of coffee that he threw away, it was possible to confirm that the samples coincided.

“Lindy Sue Biechler was on the minds of many over the years. Police certainly never forgot about Lindy Sue, and this arrest marks the first step in getting justice for her and holding her killer accountable,” the district attorney said.

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