This answer contains spoilers… (view spoiler)[I wondered the same thing, but he was the one who delivered the news to Ruth and the family after the accident. Wouldn't Ruth know him? If not, then Ahern left us with a whole bunch of unanswered (and unnecessary) questions. I personally think it's just someone else in the same area but agree that it's a little confusing.
Jelena Delibasic It crossed my mind that it could be Ruth but I doubt it because Raphie would probably act differently when he came over to tell her bad news.
Andrea ohhh that's a good question. I didn't even think it could be Ruth. I just figured it was someone else that lived in the area