Please remember, any conspiracy theory can be reality-checked quite easily by the following principle:
Any conspiracy large enough includes enough people to pass a critical mass that makes very likely the emergence of leaks and whistleblowers. If the hypothetical conspiracy is critically big but has no leaks, it becomes unlikely that there is a conspiracy in the first place.
So, let's see and wait if anything leaks about that alleged assassination attempt.
I have serious doubts and I think it was possibly staged, but I stick to the principle above.