Murder of Mary Quigley

Quigley's case was featured on the Investigation Discovery television show Murder Book on December 10, 2014.

Archibeque was convicted of first degree murder in San Jose, California, on March 2 2009 and was sentenced to 7 years to life in prison.

No immediate suspect was identified, and the murder eventually became a cold case. In 2005, Detective Sergeant Kazem resubmitted evidence from the Quigley homicide investigation to the Santa Clara County Crime Laboratory for DNA analysis. On December 27, 2006, the Crime Lab informed Sergeant Kazem that a computer database search of DNA profiles of known offenders identified a Santa Clara resident, Richard Armand Archibeque (age 47, DOB 01/26/59, a classmate of Quigley's), as the suspect. Later that day, Archibeque was arrested by detectives.

Mary was a senior at Santa Clara High School in California. She had attended a beer party and left late in the evening of Friday, September 9, 1977. Her body was found the next day approximately 300 yards away, hanging from a chain-link fence in Washington Park (now War Memorial Park) in Santa Clara. Coroner's evidence indicated that she had been raped and strangled.

On the night of Friday, 9 September 1977, Quigley, a student at Santa Clara High School, attended a back-to-school beer party at a house near the corner of Monroe and Market Streets in Santa Clara, California.

Mary Elizabeth Quigley (February 28, 1960 – September 10, 1977) was an American murder victim whose death was a cold case for nearly 30 years before it was finally solved.