Looking over her shoulder

The Girl goes to her first meeting of her neighborhood group - which had been headed by John Beresford, murdered this past spring in Ronan Park. While there, she meets a neighborhood newcomer:

... She asked me if I had ever walked home from the subway after midnight, and that she had heard it was unsafe. Frankly, I could not even believe a question like that needed to be asked. Has she read the newspaper lately? Watched the news? In broad daylight, I am looking over my shoulder every time I leave my house. Confidence is one thing, stupidity is another.