WRIGHT COUNTY, Minn. (Court TV) — A Minnesota man is accused of fatally beating his female coworker with a sledgehammer on Tuesday.

David Delong, 40, is charged with second-degree murder in the attack that was caught on surveillance video, according to a probable cause statement obtained by Court TV. The victim was identified as 20-year-old Amber Czech, reported CBS News .

This Nov. 11, 2025, booking photo provided by the Wright County Sheriff’s Office shows murder suspect David Delong. (Wright County Sheriff’s Office)

Delong and Czech were employees at Advanced Process Technologies in Cokato, a facility that manufactures products for food and dairy processing .

Surveillance video allegedly shows Delong approach Czech’s workstation and grab a sledgehammer before swinging it multipl

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