By Dan Bobkoff
http://stream.publicbroadcasting.net/production/mp3/wamc/local-wamc-519929.mp3
Springfield, MA – Springfield police are investigating three suspected heroin overdoses in the city over the weekend. And that has some wondering if a more potent form of the drug is now circulating in western Massachusetts. An update now from WAMC's Pioneer Valley Bureau Chief Dan Bobkoff. .