So you would have favored poisoning PigRigger's daughter and SueRae's favorite nephew. I can't get on board with that.
No, they would have made the CHOICE to poison themselves. Drug use is a BEHAVIOR, not a disease. Choose badly and there are consequences.
One would hope, though, that those (and most) individuals would be smart enough to leave the crap alone after the first wave of seriously ill druggies.