Fentanyl-laced heroin found in Ohio Mansfield, Columbus labs identify fatal combo Friday, June 16, 2006 Margaret Harding THE COLUMBUS DISPATCH MANSFIELD, Ohio — The deadly mix of drugs that has killed addicts in Detroit, Chicago and Philadelphia has reached Ohio. Mansfield police have identified the powerful prescription painkiller fentanyl in six of the last 10 batches of heroin confiscated by police. Mansfield police laboratory director Anthony Tambasco said he decided to start looking for fentanyl after hearing about the deaths in Detroit just before Memorial Day. Authorities there have confirmed 100 fentanyl/heroin deaths. Another 60 were confirmed in the Chicago...