I am not a conspiracy person but living what I have lived through in Canada I am forced to remain open minded and curious. The chances of this being a false flag is still very minute, however, I will say this, the conditions, timing and circumstances behind this is exponentially more probable compared to the absurd allegations people were making about Butler, PN. Your opinion, as impulsive and unproven as it is, is definitely being shared by many others online. This isn't really too surprising considering how divided politics is and of course the focus on Trump. I doubt secret service would want to be viewed with even any shred of scrutiny, which this incident once again will create, and, the gunman would have to have been comfortable in his trust he would not be killed, and, he is stikl facing decades in prison, his life lost, so this certainly significantly decreases the chances this was a planned conspiracy.