After studying the pic of BG for QUITE some time last night (and after being predictably freaked out by doing it so late), I made a couple of observations.
First, I think the pic needs to be stretched lengthwise to get a truer image (something about the angle or image itself is making him look squatter than he is). Also, as many others have said, he is unusually layered up with clothing and it's making him look bulkier. When you look at the sleeve of his right arm, the sleeve has significant extra material. It kind of looks like if I wear my boyfriend's oversized jacket and have to push up the sleeve a lot.
Also, I looked at the image using many different Instagram filters. The X-Pro II filter really highlighted the object in his right pocket. I agree with the posters who said it looks like a gun. I was skeptical at first, but look at the image using this particular filter and you will clearly see what I mean.
What's on top of his head is debatable. Some see a hat (as I did at first). Others swear this is not a hat and now I'm starting to agree that this is another attempt by him to disguise himself. I think it's a very, very bad hairpiece or wig. And this gives me the feeling that it's this that caused Libby to take his picture. I know a lot of kids will take people's pics in public not because they are afraid (which of course, could still have been the case here), BUT she may have been taking his picture because he looked just plain WEIRD.
Then, I isolated looking at the right side of his face and then just the left side of his face. Folks, don't do this late at night if you want to have a good night's sleep!
Thank you to everyone for this thoughtful and intelligent discussion. I hope there is a resolution and justice will come soon.
All of the above is JMHO.