Based on the book Final Vision: The Last Word On Jeffrey MacDonald by Joe McGinniss, the new Investigation Discovery true-crime movie Final Vision centers around Jeffrey MacDonald, better known as the Green Beret Killer, a man convicted of murdering his pregnant wife and two daughters in 1970. While McGinniss has died, MacDonald is still very much alive—in prison. We asked stars Dave Annable and Scott Foley if the production team reached out to MacDonald for input, but because the film depicts him as guilty, they decided against it. Foley, however, did tell us about some of his other prison correspondents.