Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

So, she took his picture, hearing a sound. Then she lowered her camera and heard two more sounds. And she "saw his hair jump". 

That must have been at the time of the fatal head shot. So, if she saw his hair jump, then she wasn't taking his picture at the time.

Interviewer: Did you hear a second shot?
MM: I did, immediately. It was like: Pow..... Pow, Pow. And the second shot, I was looking at this man, and my thought was, "I saw his hair jump." 

Interviewer: Was there a following shot?

MM: Yes, I heard three shots. 

Inteviewer: Most analysts have said that there were three shots, a first shot that missed, then a shot 3 seconds later that hit him in the back, and then another shot 3 seconds after that which was this shot (points to her photo). Now, I don't want to put words in your mouth, but apparently, you didn't hear those first two shots.

MM: That's right. I guess not. 

Then Mary acknowledged that at the time, she thought the sounds were firecrackers. She did not know they were gunshots. And she said that no one was reacting at that point.

Interviewer: Did it seem to you that the limo slowed down or stopped at any point?

MM: It slowed down almost if not to a stop.

The problem is that you bloodied people only believe Mary Moorman when you want to.

https://www.youtube.com/watch?v=WgNF-sPW8YI