If you look closely at the photo in his apartment at the beginning of the game, you will notice his wife and daughter have dark hair. The woman watching the video has blonde hair. This could mean that the person watching the video is a random survivor or it could be his daughter many years later. If you look closely you will see there's also a stuffed toy rabbit in the room where the lady is watching the video.
All in all I loved the game and im hoping for some DLC as the ending really left a lot unresolved.