Sorry, I never use this account, but the other commenter explained it fine. According to the accidental poisoning theory, the apple was not injected with cyanide, but rather he or the apple was accidentally exposed to it as a byproduct of his chemistry research.
I think the official story is not that he committed suicide but that he accidentally poisoned himself in the course of research, and the suicide story has just sort of been perpetuated in pop culture as a “tragic gays” narrative to make his death romantic (in the broader sense of the word).
I’ve never seen reason to believe he was murdered, though I’m not saying you’re wrong.
Philosophy has a tendency to need to use very specialized language to avoid problems of ambiguity and to precisely identify concepts that have no reason to come up in the vast, vast majority of conversation among laypeople.
Sorry, I never use this account. I don’t really know about the reception of his death at the time, I was speaking in the present tense for a reason. Perhaps no official investigation by the state was conducted, but people have looked into the circumstances since and it being an accident is today certainly one of the most prominent theories outside of the pop culture “bury your gays” story, which may well have spawned from an incorrect ruling made at the time but generally is not well-regarded now because, as you note, it’s ridiculous and there’s just not much evidence for it.