I cannot create a summary of this article because the full text of the article titled "It Always Could Have Been One of Us" from MedPage Today is not found in the search results provided. The search results only include a partial excerpt beginning with the words "It could always be one of us" and a reference to the murders of doctors in Minnesota, but I lack the essential content needed to create an accurate and factual summary. In order to comply with the requirement to write only verified facts from the article without speculation, I need access to the full text of the article.