Just finished the last thread and getting started on this one but there was a lot of discussion of SnapChat so here is my .02
MOO
My kids have snapchat, I have snapchat, cousins, aunts, uncles, even grandma has snapchat. It's very popular and a fun way to stay connected with friends or family near and far. You can post things for everyone to see on "My Story" or you can select individual contacts that you've added to send snaps to that are then not viewable by everyone except those selected. It does tell you who has viewed your snaps either way.
Anyway, IMO - I am pretty sure the pic of the suspect was random and someone noticed him in the background of one of her snaps before things went wrong most likely on her story since you can replay those (individual snaps are only replayable once immediately after you view them).
Now my point (finally!) -- I think if she had purposely noticed him and thought he was creepy at the time and took the snap of him on purpose, she would have added text and colors/circles etc something to the effect of "OMG look at this creeper!!". It is very common to add text and smilies and there is a way to draw circles or arrows etc with your finger. I really think she would have added some flair at that point if it had been taken on purpose. Almost every snap I get from the younger set they have added text and smilies.
IMO I think the audio clip is from later and under duress at that point.
Ok back to reading.