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How discarded chewing gum helped convict a serial rapist of two cold case murders
DNA from chewed gum helped detectives confirm Gaff’s link to two murders after decades of dead ends, officials said.
Everett Police used a "gum ruse" to secure DNA from Mitchell Gaff, connecting him to the 1980 murder of Susan Vesey and 1984 murder of Judy Weaver.
Investigations into the two Washington state murders remained cold for decades until advancements in DNA technology allowed forensic scientists to revisit the cases in 2020.
Everett Police Detective Susan Logothetti and colleagues visited Gaff in January 2024, collecting saliva from gum samples that confirmed his DNA matched evidence on Weaver's body.
Gaff pleaded guilty to both murders on April 16 and faces sentencing on Wednesday, with prosecutors seeking up to life in prison.
After decades of uncertainty, families of Weaver and Vesey found closure as modern DNA profiling proved essential to solving these long-unresolved cases.