The former owner of a Colorado construction firm pleaded guilty to a manslaughter charge Aug. 3 related to the death of an employee in a November 2021 trench collapse. The contractor, Vail-based A4S LLC, had not used required trench protections before the collapse, according to the U.S. Dept. of Labor’s Occupational Safety and Health Administration.
Peter Dillon, who was the owner of the now-closed A4S, is scheduled to be sentenced Nov. 9 for the fourth-degree felony, the Fifth Judicial District Attorney’s Office announced.