[Sloth]

Here's what you asked first:

If by stealing, you could prevent a murder. Would you?

When challenged, here's what you say now:

The pharmacist doesn't need to consider whether his act will prevent the murder... Whether it will prevent it has no bearing on the decision.

If preventing murder has no bearing on the decision, why did you ask a question conditioned directly on that issue? Remove the murder prevention and your first question becomes simply "would you steal?"

[DannyTN]

You are presuming that if you can't prevent a murder, then it must be ok to participate in one, since the outcome is the same regardless.

It is not.

You can't remove the murder aspect of this decision and reduce the equation to "would you steal". The question is would you steal to avoid giving a murderer the murder tool they intend to use on an innocent victim.