Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

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On May 16, 2005, a brutal crime was discovered at a Coeur d'Alene, Idaho home. Forty-year-old Brenda Groene, her boyfriend Mark McKenzie, 37, and Brenda’s 13-year-old son Slade Groene were found bound and beaten to death. Medical examiners determined blunt force trauma to the head as the cause of death.

Brenda’s two younger children, 9-year-old Dylan and 8-year-old Shasta, were missing after the killings. A massive search ended with a break on July 2, 2005, when a waitress at a Denny’s in Coeur d’Alene recognized Shasta with a man; he was arrested and identified as Joseph Edward Duncan III. Shasta later testified that Duncan stalked the family, broke into the home, subdued the adults and Slade, then led the younger children outside. She reported hearing noises from the house and saw Slade stagger out gravely injured before Duncan killed him.

Dylan was abducted with Shasta and later murdered; Shasta survived and provided key testimony. Does anyone have memories of the family in Coeur d’Alene or information about the events leading up to May 16, 2005?