Reply #55: It is not magical thinking at all

[hfojvt]

The guy came to her mother's funeral, presumably because he knew her mother. He's a friend of the family. Thus, if another family member dies, there is a fairly good chance he will goto that funeral too.
Although with more logic, since he did not previously know the first sister, he is not necessarily going to know the 2nd sister either, unless she is a sister who has stayed closer to home.