I don't see why. Lots of people take drugs, they're very available in San Francisco, and that particular combination is famously risky. Sure, common sense would tell you that the risk isn't worth it, but people often take foolish risks in pursuit of a good time.

Accidental drug overdoses from heavy drug users are suspicious? They happen all the time, unfortunately.

Any specific reasons why it sounds highly suspicious?

I don't mind theories, but just throwing that out there with literally no supporting evidence is just a waste of energy.

I was not the person who downvoted.

I do agree that the timing is very suspicious, and i'm sure this will be construed as some kind of conspiracy- but realistically, considering the kind of death; I think it's most reasonable to accept that this was a standard mixed drug overdose death.