Bigger picture though, Bill Murray is famous making it easier to answer questions like this. In general, does the wording of the author's question truly imply he's searching for a fact check, and do you expect Google to know that even if there are no articles that match the wording of the question? The snopes articles does contain the terms "did", and "Bill Murray", and "run for president", so we don't have any evidence that Google understands the question, we just have some content that matches the query.
The issue I see is that the computational question of search has long been trying to measure relevance by matching the query against the corpus. This Bill Murray question is an example of how that can break down. I might actually want the fake articles... and I might not. There's no way for the search engine to know without making an inference, and the expectation that mass market search engines make inferences seems pretty new to me - and I don't expect that when I do text searching. I guess I just expect voice search to push the need for question understanding and inference making even faster than text search has.