Summary

On September 29, 1999, the remains of an unidentified woman were discovered aboard a derelict cabin cruiser floating off Sigsby Bay, approximately 150 yards north of Rat Key near Key West, Florida.

Authorities were directed to the vessel by an anonymous caller who claimed to be the woman’s boyfriend and stated that she was suicidal. The woman’s remains were found in an advanced state of decomposition, making her unrecognizable. Investigators estimated that she was between 35 and 45 years old.

Efforts to identify the woman, including fingerprint analysis, were unsuccessful. Despite continued investigative work, the case went cold, and she remained unidentified for decades. She became known by the alias “Cinnamon.” Details of the case were entered into the National Missing and Unidentified Persons System as NamUs UP6210.

In 2026, investigators with the Florida Department of Law Enforcement, working with the Monroe County Sheriff’s Office and the Monroe County Medical Examiner’s Office, submitted forensic evidence to Othram in The Woodlands, Texas.

Othram scientists used Forensic-Grade Genome Sequencing® to develop a comprehensive single nucleotide polymorphism profile for the unidentified woman. FDLE's forensic genetic genealogy team used the SNP profile in a genetic genealogy search and developed new investigative leads.

Using these leads, investigators conducted a follow-up investigation that resulted in the identification of the woman as Cumie Doylene McCutcheon. Her death iss believed to have resulted from a possible overdose involving amphetamines and alcohol, and suicide was considered a possible manner of death.

This is the 71st publicly announced case in Florida in which investigators have used Othram’s technology to identify an individual. Learn about other cases by visiting Othram’s website.