So probably he´s not someone from the dorm itself...just guessing..He came through the window.
OMG this means my Terminator like scene of busting in every room firing ur guns is already out of question...
Would be cool though: "My stuff or your life: Hasta la vista Baby,pls vote for me again for me during next elections"
Again @sang-drax just keep ya head up, hopefully you find that "bloody" thief that had the guts to play Robin Hood in your room...
Greets,
Ganglylamb.