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Mark Edward McKenzie

Case from Coeur DAlene, ID dated May 16, 2005

Victim Details

Mark McKenzie

Male

White / Caucasian

Coeur DAlene

ID

2005-05-16

37

Mark

Edward McKenzie

06/22/2026

Case Description

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In a quiet home in Coeur d'Alene, Idaho, the life of 37-year-old Mark McKenzie, a White/Caucasian male, was brutally cut short on May 16, 2005. McKenzie was found murdered alongside his fiancée, Brenda Groene, 40, and her 13-year-old son, Slade Groene. The scene that greeted investigators was one of unimaginable horror; the three victims had been bound with duct tape and zip ties before being bludgeoned to death with a hammer.

The grim discovery was compounded by the terrifying realizati ...
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Links to Additional Sources (13)

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  • Idaho suspect to be charged with murder - Jul 12, 2005 - CNN
  • What Happened To The Groene Family? | Investigation Discovery
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    Forum Posts (3)

    Hey everyone,
    I've been following the Groene case for quite some time, and something that's been ... ...Read More
    12/08/2023
    I’ve been diving deep into the details of the Coeur d'Alene massacre, and one thing that sticks wi... ...Read More
    11/01/2023
    I've been revisiting some older true crime cases recently, and I just can't stop thinking about Mark... ...Read More
    04/04/2023
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