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Danielle Cuvillier

Case from Mercer Island, WA dated Dec 30, 2025

Victim Details

Danielle Cuvillier

Female

White / Caucasian

Mercer Island

WA

2025-12-30

80

Danielle

Cuvillier

06/28/2026

Case Description

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On a quiet street in the affluent community of Mercer Island, Washington, the life of 80-year-old Danielle Cuvillier, a cherished local artist, came to a tragic end on December 30, 2025. The grim discovery was made after an attorney representing Cuvillier received a concerning email, prompting a welfare check at her home. Upon arrival, officers peered through a window and saw a person who appeared to have been shot. Inside, they found Cuvillier and her 45-year-old son, Mackenzie P. Williams, bot ...
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Links to Additional Sources (10)

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  • The Seattle Times: ‘I hurt for all of them’: Neighbors react to suspected Eastside homicide-suicide
  • KOMO: Welfare checks find 4 dead at 2 homes in Mercer Island, Issaquah
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    Forum Posts (1)

    I've been following the Mercer Island case closely, and I can't stop thinking about the role that me... ...Read More
    01/19/2026
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