OGDEN, Utah (AP) — Investigators say they don’t know what triggered an explosion that killed a man at an engineering business in northern Utah. The Standard-Examiner in Ogden reported Monday that police in Brigham City have completed their investigation into the March 10 blast at HyPerComp Engineering but were unable to pinpoint a cause.
Lt. Tony Ferderber says 33-year-old Alex Stoddard, who was the only one in the building at the time, was transferring oxygen from a larger tank to a smaller tank when something caused the explosion.
The blast was not caught on surveillance video. HyPerComp manufactures pressure vessels, which are often used in the automotive and aerospace industries.