ABC News hears from an attorney who represents several members of the Sackler family, owners of the company that sells the highly addictive opioid Oxycontin. Multiple lawsuits accused the family and their company, Purdue Pharma, of pushing hard to sell the drug while scheming to profit off of opioid addiction treatments. Attorney David Bernick spoke on GMA this morning/Tuesday to ABC Chief Anchor George Stephanopoulos