Pretty simple to find out...look at his camera picture folder...and his send file.
I would think the police would have checked his phone to make sure...
My bet is she imagined this...
They did - this story is local to me (and I use the mall where it happened a couple of times a month), so I've seen a lot of news coverage about this.
The man's phone was analysed (and they can see if images or messages were deleted) and no photos of the women's children were on it. The only image from anywhere near the time it happened is the image of the man himself in front of the Star Wars display. His version checks out, hers doesn't, and she has accepted she got it wrong.
The man did speak to the kids briefly saying something like: "I'll be out of the way in a minute - I am just taking a photo to send to my kids," when he realised they wanted to look at the display as well. Her kids either gave her a scrambled version, or she scrambled it herself. I don't doubt she believed there was a problem - but she was wrong - and rather than leave it to the police (who were investigating) she decided to post her photo of the man outside the store and publically smear him.