It depends. It will come out eventually.
My comments are made with the sincere desire to know why.
Why would she let him into the apartment unless she knew him and how did she come to know him?
Most liberals speak words of multiculturalism behind gated communities. They will talk about sacrificing themselves for the sake of society, but almost almost it is other people than the liberal that the liberal expects to sacrifice.
He probably said he was a maintenance worker, like he said to another victim. (See the link in my post #101 above.)
Many people feel safe in their little community. They think nothing bad will happen to them there. "Oh, you're maintenance? Okay..."