Question: Which American medical doctor was convicted in 1979 of murdering his pregnant wife and two daughters and is the subject of Joe McGinniss' 1983 book "Fatal Vision"?
Sentence (from "The Journalist and the Murderer"): The journalist in question is Joe McGinniss; the murderer is the former Special Forces captain Dr. Jeffrey R. MacDonald, who became the subject of McGinniss' 1983 book "Fatal Vision".
Relevant evidence: Yes