(CINCINNATI) -- A Chicago doctor was sentenced to four life sentences Tuesday in Ohio for killing patients with prescription drugs.
From 2003 to 2005 federal prosecutors said there was no bigger dispenser of oxycodone than Paul Volkman, 64, a physician who distributed millions of addictive pills in exchange for cash. Four people died as a result of the drugs he dealt, and a judge in Ohio sentenced Volkman to life in prison.
Volkman maintains his innocence and says he always acted like a doctor, not a drug dealer. He operated in a part of Ohio identified as one of the country's prime spots for painkiller abuse, and prosecutors said Volkman made the problem worse.
Copyright 2012 ABC News Radio