Overdose on legally manufactured drugs being much overshadowed by the black market sourced drugs.
It is difficult to come to conclusions about how much of the reactions are showboating and how much are legitimate, but it seems clear that the net negative outcomes can be minimized if you teach people about the drugs they want to take, allow them access to a reliable source, allow them access to treatment for misuse and addiction, and target the sources of suffering that lead people to try to escape with drugs.
The situation though is considerably more complex than just these points.
I believe the solution is to make opiates easily, cheaply and safely available in a controlled clinical setting, much like how Portugal got their opiate problem under control. Keeps people off street drugs, thus keeping their doses reasonable and opiates out of the hands of people who are not recovering.