Summary
In February 1989, police responded to a homicide in the 2100 block of Hoyt Avenue in Everett, Washington. Upon their arrival, officials discovered the body of an adult female, who was identified as 33-year-old Mary Ann Daniels. Daniels was disabled and had been placed into a transitional living facility located on Hoyt Avenue.
At the time of Mary Ann’s death, forensic DNA technology was in its infancy and despite efforts to identify a suspect, the person responsible could not be identified. Mary Ann’s death was a mystery for 36 years. Over the years, investigators have worked tirelessly to uncover the truth and bring justice to the person who murdered Mary Ann.
Everett Police Department Detective Susan Logothetti enlisted the assistance of multiple laboratories, including Othram, in hopes that advancements in modern DNA technology could help to finally solve the mystery of who murdered Mary Ann. In 2020, the Everett Police Department submitted some of the evidence from the 1989 crime scene to Othram.
Othram scientists successfully developed a DNA extract and used Forensic Grade Genome Sequencing® to develop a DNA profile. Using this profile and others developed from other laboratories, Othram forensic genetic genealogist Deb Stone worked with law enforcement investigators to develop new leads in the case. 
These new leads enabled law enforcement to launch a follow-up investigation, leading investigators to a potential suspect in Clark County, Nevada. In January 2025, 61-year-old Joseph Andrew Jacquez was arrested for the murder of Mary Ann Daniels after DNA collected from the actual instrument used in her death was identified as belonging to Jacquez. Joseph Andrew Jacquez was Mary Ann’s neighbor at the time that she was murdered. Jacquez will be extradited to Snohomish County to face charges in Mary Ann’s death.
The identification of Mary Ann Daniels’s killer marks the 36th case in Washington where officials have publicly identified an individual using technology developed by Othram. To read about other cases in Washington, visit DNASolves.
Michael Vogen
Director of Case Management
Michael works with law enforcement agencies throughout the United States and Canada on “unsolvable“ cases that can benefit from advanced DNA testing methods. He helps these agencies use cutting edge DNA sequencing and new forensic techniques to develop investigative leads for their cases.