Man killed by dirt pulveriser

A Nixa construction worker apparently has been suffocated when his coveralls got tangled in a conveyor belt and his clothing was pulled so tightly against him that he could not breathe. Paramedics could not revive Derald St. John, Jr., 25. Police say co-workers left St. John to take a break and returned a few minutes later to find him dead. OSHA and other agencies are now investigating.