By Eric Eyre State treasurers from West Virginia, Pennsylvania and Illinois are calling on drug giant McKesson Corp. to take steps to combat the nation's opioid epidemic - or possibly risk losing investments by those states. The treasurers' request comes a day before McKesson's annual shareholders meeting in Irving, Texas. The treasurers said they would "re-evaluate" their state's investment position in McKesson and encourage other institutional investors to do the same -- if the board ignores their demands. The state treasurers stopped short of saying they would recommend pulling investments in McKesson stock. "West Virginia has been ground zero for the opioid epidemic, and I am deeply concerned for the people of my state," said West Virginia Treasurer John Perdue, a native of Boone County, which has one of the highest drug overdose death rates in the U.S.