So, what is the problem?
The druggie is shown to be irresponsible if he ingests something he has not tested for purity. The fault for the death is the taker, not the provider and certainly not the drug warriors.
To OD and die is to serve as a bad example. Takers beware
The drug war is a major contributor to overdose deaths, by leading to highly variable potencies.
So, what is the problem?
Doug Coleman, acting special agent in charge of the DEA in Arizona, says he thinks overdose deaths are a problem (to which the drug war is a solution). Go argue with him.