Tag Archives: koller

Koller A Mason, Ohio, contractor recently fined $201,201 by OSHA following the trench collapse death of Zachary David Hess was arrested in Cape Coral, Florida, on a second-degree murder charge. According to reports by the Fort Meyers News-Press  and Cincinnati.com, Gerald P. Koller, 49, owner of JK Excavating and Utilities, …

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