Changing the current laws to allow for some accountibility on the drug dealer's part would resemble the laws we have for establishments that serve someone too much alcohol. When a drunk driver leaves a bar and kills himself or others, that bar/bartender bears some responsibilty. Nobody physically forced the DD to drink, much like no one physically forced the drug user to use. Blaming others for one's weaknesses as been around since mankind (remember that snake with the apple who snuck up on the naked lady in Eden - "but Adam, he made eat it"). Blame is unclaimed responsibility. These families understand their love ones are partially to blame - but there's plenty of blame to go around, and yes, the dealers should bear some of that blame/responsibility.