I’m sorry but this is really silly. Ears are very vascular and bleed a lot with minimal trauma. They also heal fairly quickly. Somebody died from this and to assert that it was somehow staged is ridiculous.
But speaking as a nurse that has been turned off from the profession by fellow nurses, absolutely none of this surprises me.
Not staged, but clearly his ear wasn't hit by a bullet. The earlier explanation that he was hit by glass from the teleprompter seems more plausible. Ears can bleed a lot from a tiny cut that won't even be visible days later.
Like the poster above - he would be missing a chunk of ear if it was hit by a bullet.