Twenty-one-year-old Jacob Casher was still a “new guy” employed by a Beaver, Pennsylvania-based plumbing company when he left home for work in September 2015. He probably never imagined that as he worked to install a sewer line 11 feet underground in Butler, Pennsylvania, it was to be the last day of his life.Related: Unshored Trench Claims Life of Pennsylvania PlumberOn Sept. 28, 2015, the excavation in which he worked collapsed, crushing and burying Casher under thousands of pounds of earth. Research shows that a cubic yard of soil can weigh as much as 3,000 pounds, the weight of a small automobile. His employer,
