ex-trafficked. erica, ashley, nicole, being sewed on the internet. we have white girls here, black girls, hispanic girls. the young guest girl went missing when she was 13 years old. she may be in the company of an adult male over here. in this case, that adult male is most likely the pimp. a group based in georgia called a future not a past commissioned a study, focusing on the men who try to buy sex online with underaged girls. >> we wanted to know what the scope of this problem is in georgia. 7200 men a month buying sex from adolescent girls just took my breath away. >> reporter: there's no legal obligation for websites to report ads that might involve underage prostitution. backpage says it including links to help notify official it is