DNA Breakthrough: Convicted Rapist Sentenced for Two Cold Case Murders

Michael Okonkwo, Middle East Correspondent
4 Min Read
⏱️ 3 min read

In a chilling culmination of investigative persistence, Mitchell Gaff, a 68-year-old convicted rapist, has been sentenced to a minimum of 50 years in prison for the brutal murders of two women in the 1980s. The cold case, which lay dormant for decades, was cracked open through an audacious ruse involving discarded chewing gum, ultimately leading to Gaff’s arrest and confession.

The Case Unfolds

Gaff was apprehended following a covert operation by the Everett Police Department, where three undercover detectives posed as representatives of a gum company conducting market research. This unusual tactic allowed them to enter Gaff’s home, where he inadvertently provided DNA samples via saliva on used chewing gum. The evidence gathered would prove instrumental in linking him to the unsolved murders of Judith Weaver and Susan Vesey.

Judith Weaver was found dead in her home on June 2, 1984, after a fire, later revealed to have been set by Gaff. Susan Vesey’s body was discovered on July 12, 1980, by her husband. The police had previously matched Gaff’s DNA to the evidence collected from Weaver’s murder, a breakthrough that stemmed from his earlier conviction for raping two teenage sisters in 1984.

The “Gum Ruse”

Details of the operation, which has been dubbed the “gum ruse,” reveal the lengths to which investigators went to gather the crucial evidence. In January 2024, the detectives approached Gaff under the pretense of selling gum and engaged him in conversation, ultimately getting him to dispose of his gum in a dish they had provided. Susan Logothetti, one of the officers involved, recounted the moment, “I remember watching him spit the first piece of gum into the ramekin and seeing the saliva; it was very hard for me to contain my excitement.”

The cunning strategy paid off. Gaff’s DNA was not only a match for Weaver’s murder but also linked him to Vesey’s case, providing the police with the necessary evidence to proceed with charges.

Confessions and Sentencing

Gaff’s confessions in court were chilling and detailed. He admitted to entering Vesey’s home and committing the heinous act of beating, raping, and strangling her. In his own words, Gaff recounted how he had stumbled upon her home and found the door unlocked. He later attacked Weaver in a similar fashion, attempting to destroy evidence by setting her bedroom ablaze. “Ms. Weaver died because of my actions,” he stated, underscoring the brutal nature of his crimes.

On April 16, Gaff pleaded guilty to two counts of first-degree murder, sealing his fate as a remorseless killer. His sentencing on Wednesday serves as a grim reminder of the dark legacy of his actions and the pain inflicted on the victims’ families.

Why it Matters

The resolution of these cold cases highlights the critical role of innovative investigative techniques in modern law enforcement. The use of DNA evidence and unconventional methods, such as the “gum ruse,” not only brings closure to long-suffering families but also reaffirms the commitment of law enforcement to pursue justice relentlessly. Gaff’s case stands as a testament to the idea that even the most elusive criminals can be brought to account, no matter how much time has passed.

Why it Matters
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Michael Okonkwo is an experienced Middle East correspondent who has reported from across the region for 14 years, covering conflicts, peace processes, and political upheavals. Born in Lagos and educated at Columbia Journalism School, he has reported from Syria, Iraq, Egypt, and the Gulf states. His work has earned multiple foreign correspondent awards.
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