At 0:49 you can hear the security members declare that "The shooter is down. The shooter is down."
A close-up from the above photo. My interpretation is that the the two lines on his face are bullet grazes. If this is the case, the longer line might also be the bullet that hit his ear since, from this angle, the path looks direct: starting at his upper lip, travelling across his cheek and slicing his ear. It could also be three separate shots. If this is what this is, you can't get much closer!
View attachment 98078
Edit: Was this the 'something big in the middle of July' that was being foreseen by the psychics?