She does seem to randomly kill a few perhaps-innocent people near the beginning. I suppose we're supposed to assume she super-knew that they were bad guys...
Sister Rust, I need you now.
Cause I've got a feeling.
It's you and me again, waiting for the credits to end.
Now and forever.
With something in our hearts, that if we were to stop, would pull us away.
There's nothing we can do, to stop feeling this blue.
Anyway.
"Professor Norman, my name is Lucy I just read all of your research on the human brain we need to meet."