{Princeton, West Virginia}...Clarence Worrell, a 51 year old worker who suffered severe burns in a March 5th fire at Conn-Weld Industries in Princeton, died Monday at Cabell Huntington Hospital. State police say a machine caught fire and then exploded during an attempt to extinguish the blaze. Another worker who suffered burns remains hospitalized, while a third worker was treated for smoke inhalation and minor injuries at Princeton Community Hospital and released.