FILE PHOTO: A full syringe, empty syringe and spoon sit on the roof of the car in which a man in his 20’s overdosed on an opioid in the Boston suburb of Lynn, Massachusetts, August 14, 2017. REUTERS/Brian Snyder/File Photo(Reuters)…

(Reuters) – The three largest U.S. drug distributors are facing trial on Monday in West Virginia in a lawsuit accusing them of fueling the opioid crisis that has resulted in 500,000 overdose deaths in the United States over two decades….