[elephant007]

Did you file a police report for it being stolen?
As for people saying it's his fault, legally it's not his fault even if he left it there for just 10 minutes. Now could he have prevented it from occurring by taking it with him, sure.

I would 1) report it to the apartment complex (although they probably have signs stating they are not responsible for lost or stolen items, you can still report it though) 2) File a police report that your phone was stolen

Sucks that your phone was stolen, I don't think you'll get anywhere by kicking and screaming to Sprint/Assurion about it being stolen that that you demand a new one. I wish you luck though