I'm going to answer two responses, here.

Number one, the shooter fired directly at Trump. The bullet passed through his ear and struck another victim. This makes absolute sense. In fact, there was a different camera angle that shows a man, wearing a red hat and vest, near the display board on the right, dropping immediately after the shooting started.

Number two, my wife has asked about the other victims. My explanation is that the shooter fired at Trump, but didn't take enough time to re-aim, and fired randomly into the crowd...hence the other two victims. Anybody who has shot a semiautomatic rifle knows that staying on target can be difficult, especially with inexperienced shooters.

As for the photo of the bullet passing Trump "before" he was wounded...Trump hesitated and grabbed his ear, several milliseconds AFTER the shooting started. There is nothing sneaky about this, human reaction time is not immediate when pain is felt. The bullet could easily have been several feet past Trump before he was able to respond.

Interesting. Bullets DO move faster than sound.
I remember a daytime tower shift during the Nineties when a deputy warden had all the tower officers one by one shoot at a target that the dog warden moved.
On Tower #3 I heard all kind of weird whistles and buzzes when Tower #2 and Tower #4 fired shotguns and AR-15s at that target.
Later the Dog Warden shocked me by saying I was the only one who hit that target.
Feels good to brag about that but like Rush Limbaugh once said, "You're not bragging if you are telling the truth."
Towers #2, #3, #5, #6 were closed due to an electric fence being installed shortly thereafter.
Towers #1 and #4 required opening the front and back gate and #4 had a sally port that could let trucks inside.
For some reason Admin liked me on #4 a lot until I retired.
And for some reason I didn't mind being often being assigned above the maximum security pit of a prison named after an officer who got killed in there.