David Delong, 40, is accused of killing 20-year-old Amber Czech, his coworker at the Advanced Process Technologies in Cokato, Minn. Portraits by Cindy David Delong, 40, is accused of killing ...

A deranged Minnesota man allegedly bludgeoned his female co-worker to death with a sledgehammer — and told police he had been plotting the ruthless attack for some time. David Bruce Delong, 40, was ...

David Delong, 40, is accused of killing 20-year-old Amber Czech, his coworker at the Advanced Process Technologies in Cokato, Minn. David Delong, 40, is accused of killing 20-year-old Amber Czech, his ...

Add Yahoo as a preferred source to see more of our stories on Google. David Delong, 40, is accused of killing 20-year-old Amber Czech, his coworker at the Advanced Process Technologies in Cokato, Minn ...