hot 69. anyway. i think he's fake. he's not even that cute. but i have absolutely no idea who that is. >> let's look a little more closely at that. this instagram user says he's 18, following a 13-year-old girl. >> there's actually a lot of people i have no idea who they are. i just let them follow me because the more the merrier. >> and gaby, like many middle schoolers in this study, shares a lot of her life on social media. sometimes even more than she realizes. take a look at this instagram po post. she wants to show her friends that she's tanning at a lake. seems innocent enough, but any follower who clicks on this photo can pinpoint exactly where she is. that's because of the locator function that she didn't even know was turned on. according to the fbi, there are more than half a million sexual predators online every single day in america and they regularly create fake online profiles to groom unsuspecting