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Placer County DA highlights fentanyl prosecutions, cold-case arrest and push for crime-lab capacity
Summary
District Attorney Morgan Guyire described recent prosecution wins including multiple fentanyl-related murder convictions, a solved cold-case homicide, sustained SVP litigation and expansion of victim services and prevention campaigns. The DA urged investment in local crime-lab capabilities to reduce costly outsourced DNA testing.
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District Attorney Morgan Guyire presented the DA office’s FY 2026–27 budget and described priorities and challenges facing the office, framing much of the work around high-profile prosecutions and community outreach. Guyire noted the office’s recent courtroom successes: "we recently this week... had our fourth murder conviction for a fentanyl-related murder," and said that four of California’s fentanyl-associated murder convictions occurred in Placer County.
Guyire described the recently solved decades-old Granite Bay cold case and called the arrest an example of how new forensic technology and persistent work can provide closure for families. "After more than three decades, we believe we know who is responsible for the murder of Cindy Warner," he told supervisors, noting the cross-agency work that led to the identification.
The DA outlined program-level investments: a dedicated prosecutor handling post-conviction and sexually violent predator (SVP) litigation, a retail-theft unit that coordinates multi-county operations, and an expansion of community outreach and prevention work in schools and with elder populations. He described legislative activity the office supports to tighten mental-health diversion standards and extend monitoring for misdemeanor sex registrants.
Guyire also emphasized the cost pressures the office faces from forensic testing and the case backlog: DNA retesting and outside laboratory expenses can run tens of thousands of dollars per case, he said, and urged the county to consider building local crime-lab capacity to reduce those recurring costs. Kim Yamanishi, administrative and fiscal officer for the DA, presented the DA’s budget numbers — roughly $38 million operating with salaries and benefits about 84% of that total and an increase in positions to 141 FTEs in 2026–27 — and described a new funded digital communications specialist to manage digital evidence and jury presentation needs.
Guyire closed by linking prosecution priorities to prevention: outreach campaigns on fentanyl awareness, online safety for children and teen-dating-violence education remain central to the DA’s strategy to reduce victimization while maintaining high prosecutorial standards.

