Perhaps you should re-read certain portions of the game. There are many instances of foreshadowing already, especially regarding the church and mother superior.
I won't spoil it but you'll know why when the case is resolved. Maybe it would be fun if you go back and re-read the case and try to find things you might have missed. I love to do that when watching movies or playing games.
I'll give you a hint regarding the camera though as its already revealed in the current update. Why do you think he took the time to tell her about the first camera but not the second? ;P