Interest charge

DNA from trashed coffee cup led cops to charge man in 1975 murder

  • Investigators have made an arrest in the murder of a nearly half-century-old Pennsylvania teenager.
  • That’s thanks to DNA evidence extracted from a coffee cup thrown in the trash earlier this year.
  • David Sinopoli has been charged with criminal homicide in connection with the 1975 murder of Lindy Sue Biechler.

Investigators were able to make an arrest in the murder of a Pennsylvania teenager, nearly half a century old, thanks to DNA evidence extracted from a coffee mug thrown in the trash earlier this year, officials said.

David Sinopoli, 68, was arrested at his home in Lancaster, Pa., on Sunday and charged with felony homicide in connection with the 1975 stabbing death of 19-year-old Lindy Sue Biechler from the County District Attorney’s Office. Lancaster and Manor Township Police. Department announced in a press release.

Biechler was discovered dead by her aunt and uncle in her apartment in Manor Township on December 5, 1975. Authorities said she had been stabbed 19 times in the neck, chest, upper abdomen and back.

Officials said in the press release that genetic genealogy analysis and DNA testing led police to identify Sinopoli as a possible person of interest in the case in December 2020.

Earlier this year in February, investigators secretly obtained Sinopoli’s DNA from a coffee mug he used and threw in the trash at Philadelphia International Airport.

The DNA on Sinopoli’s coffee mug was determined to match sperm found on Biechler’s underwear after he died.

“Lindy Sue Biechler was 19 when her life was brutally taken from her 46 years ago in the sanctity of her own home,” Lancaster County District Attorney Heather Adams said in a statement.

Adams said she hopes the arrest in Lancaster County’s oldest cold case homicide “would bring some relief to the victim’s loved ones and members of the community who for the past 46 years have not had no answers.

“This arrest would not have been possible without the help” of CeCe Moore, the lead genetic genealogist at Virginia-based Parabon NanoLabs, Adams said.