The guy was upstage right, then walked down to the suitcase. Which is what you would do if you were collecting things to take away.
One problem with your theory: The time stamp of photo #3 is one day AFTER photo #1.
Possibly. The diirection of travel itself is not conclusive. It could just as easily mean that he is picking his way to where he is going to place the props, or that he has gathered them up after the shoot. How would you explain the pristine cleanliness of these toys, especially's Minnie's black legs and ears and red dress? How does a toy end up in that spot after a bombing and building collapse with no dust on it without having been placed there after the fact?
And your explantion for the pristine condition of fabric toyes that came through a structure collapse dust/smudge/anything free?