Earlier quoted context omitted.
Why you say they will kill random stranger? They kill an addict. Prisons don't have space anymore because gov don't have budget. You are welcome to go to my country and get mug by them. Your view will change.
Addicts are humans, too. We're not talking about killing an addict in self-defense. We're talking about being explicitly told to seek out and murder addicts. Do you not see any moral problem with that?
You can choose to kill bad people or let it slide. The latter will cause more problem to society. Prison will do nothing. This is not scandinavian country.