“Advances in technology are helping investigators to come to significant conclusions in their investigations and helping families to learn what has happened to their missing relatives. We thank the criminalists at California DOJ for their continued assistance in this area.”
CSLEA President Alan Barcelona
HUMBOLDT COUNTY – On November 7, 2023, the Humboldt County Sheriff’s Office (HCSO) announced that through forensic DNA testing, a woman whose body was found 43 years ago has now been identified.
On February 11, 1980, HCSO responded to a call of possible human remains located in the brush off Stagecoach Rd, near Trinidad. The body of a woman, described as 20-30 years old, with reddish-brown hair, 5’9” tall, weighing 170 pounds, was located in a sleeping bag.
During the investigation the California Department of Justice (DOJ) was able to recover a latent fingerprint which was entered into the Automated Latent Print System with no reported matches. A forensic dental examination was completed by a local dentist. An autopsy was completed, and the cause of death was listed as an overdose. A DNA sample was obtained and entered into both the California Missing Persons DNA Database and the National Unidentified Persons DNA Index (#UP55390). The DNA profile was routinely searched against profiles from both missing persons and other human remains in the Combined Index System (CODIS). No profile matches were ever made.
In December 2022, HCSO and California DOJ partnered with Othram Inc, a forensic genealogy lab, to determine if advanced forensic DNA testing could help establish an identity for the unidentified woman or a close relative. California DOJ sent Othram a DNA extract from the unknown woman’s remains. Othram scientists used Forensic-Grade Genome Sequencing to build a comprehensive DNA profile for the woman. Once the profile was built, Othram’s in-house genealogy team used forensic genetic genealogy to produce investigative leads.
In August of 2023, HCSO received the Othram report indicating the DNA profile may be that of Denise Gail Cruz, born in 1953. The report included several genetic relatives, including a possible brother named Mark from Colorado. HCSO investigators were able to contact Mark, who confirmed he had a sister named Denise Gail Cruz. A DNA sample was obtained from Mark and sent to California DOJ for comparison to the unknown female. California DOJ was able to confirm that Mark and Denise were genetic relatives. For unknown reasons Denise stopped communicating with family members. Their last contact with her was in September of 1979. Denise had been living a transient lifestyle and was suffering from untreated mental health issues. As the family was not sure whether the loss of contact was intentional, Denise was never reported as missing.
HCSO thanks the California Department of Justice DNA lab and Othram for their outstanding work and assistance in solving this case and providing the Cruz family with some closure for their missing loved one. HCSO is continuing its partnership with California DOJ and Othram and is reviewing several other missing persons investigations for the use of this latest DNA technology.
