This is the question for the "Trump was hit by fragments" theorists that needs answering: "What was between Trump and the shooter that caused this supposed fragmentation either of a bullet or led to shrapnel/shards injuring Trump?"
Photos of the teleprompter show no damage. There's nothing else that I can see that was between Trump and the shooter. As the Sherlock Holmes' saying goes, "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."
There are many possibilities. Note the video below:
In the initial picture of this video, and at the time mark of 0:56, one can see four metal railings that can assist people going up some steps. They are about 3 feet tall. A bullet could strike one of these and produce a shower of fragments, which could wound the four police officers standing near the feet of Trump and Trump himself.
There are thousands of people here. But all were not equally likely to get hit by such fragments. The ones within a few feet of the railings are far more likely to be hit than anyone else. The police officers and Trump.
The shooter was firing from 140 years away. Oswald, at the longest range, 88 yards. And Oswald had expert Marine training, whereas Crook's had no such training or any expert training as far as I know. He could miss by several feet.
In any case, it appears some object was hit causing a shower of fragments. In addition to Trump four police officers also had minor wounds from flying debris. Five days later there was a news report that confirmed this by saying of the four injured officers, two were in minor hot water over whether they were authorized to come to Butler to help provide protection. So it appears these officers are not imaginary. One of these "imaginary" police officers can be seen walking in front of the podium, right below Trump's a minute or so before the shooting.
In any case, people have to start to deal with the facts. One can continue to ignore the four officers with minor wounds from flying debris. But you can't expect to find out the truth when one ignores inconvenient facts.
The only defense for the rifle bullet theory is a stream of false statements. "The only reports of the injured officers come in the immediate aftermath of the shooting", "There is no object that could have been struck that could have produced a shower of fragments that could continue in Trump's direction" or "There were no uniformed police officers anywhere near Trump when the shots took place".
And again:
* Why didn't Trump show us his ear before it totally healed?
* How did a bullet struck ear heal up so quickly in anyone, let alone a 78 year old man?
* Why didn't Trump become deaf from a supersonic bullet passing within two inches of his ear drum?
* How is it Trump's head just happened to be turned in such a way, directly toward the shooter, making it possible for a rifle shot to hit his ear but not continue on to hit his skull? How do we know Trump was directly facing the shooter and not 20 degrees to the left?
No answers to any of these questions.