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Case Description

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In the early morning hours of Saturday, March 6, 2021, a simmering dispute between a stepfather and stepson erupted into deadly violence in Nampa, Idaho. Michael Lynn Koch, a 56-year-old Caucasian male, was fatally shot in the driveway of his home on Portner Road. The man responsible was his 76-year-old stepfather, Ronald Carpenter, who remained at the scene and was subsequently taken into custody by the Canyon County Sheriff's Office. Deputies arrived around 8:15 a.m. following reports of a man ...Read More

Victim Details

Michael Lynn Koch

Male

White / Caucasian

Nampa

ID

2021-03-06

56

Michael

Lynn Koch Sr

Substantiated

04/23/2026