Because 59 witnesses would have to conspire to present the same consistent account, the most ridiculous and obvious conspiracy theory of all is coming from the Lone Gunman Conspiracy Theorists.
It should be no surprise that so many in the Bush cabinet are supporting Hillary now: Donald Rumsfeld, Dick Cheney, and Karl Rove. Notes on how the Clintons collaborated with Karl Rove and tech guru Mikey Cunnygnham to rig 2000, 2008, 2016 election. Appeal to reinstate Secret Service protection for Sen. Bernie Sanders over highly credible threat to his life. A pattern emerges: notes on Donald Trump assassination attempt in Vegas in late June. A brief background on May 6, 2016 amendment to 1963 post-Kennedy assassination executive order for a peaceful presidential transition, Obama's Executive Order — Facilitation of a Presidential Transition. Hillary's "Bernie bump" fails to materialize, Hillary actually drops in polls, below Trump, after Bernie's coerced endorsement.