EmilyGoth

i was recently passed 2 reallife photos of someone that i know to be true of them but on the second photo they gave me it said it was uploaded by another avatar and the secondlife date on it was over a year ago. the person that gave me the photo couldnt explain this but the only way i can see it is that this person passed it from another account ( alt account original uploader ) to the account it was passed to me from. Is this the only way that could happen or can it actually be forged by someone else that can also put a secondlife date and time it was uploaded and another accounts name on it?