OK you are correct Roigs room was locked, thinking back on it she said in her interview she wouldn't let the police officer in- made him slide his badge under the door but she didn't think it looked real so she told him if he really was LE he would have a key...which he did.
But she didn't know why the shooter passed them by so was her door already locked and she simply closed it?
Since she did talk about the officer having the key on national TV I don't think anyone is hiding anything.
I listened to her interview just last night and she said that they were all in the bathroom iand the door of the bathroom was locked. That was the door the police officer put his badge under and had the key for.
[video=youtube;q-pwJrFoElI]http://www.youtube.com/watch?v=q-pwJrFoElI[/video]