Book excerpt: Canal draws on his background in electronics and as an instructor in the US Air Force to challenge the conspiracy theories around the 1963 assassination of John Kennedy. He assembles evidence from the testimony of ballistics experts and doctors; new analysis of bullet fragments; and the phone calls and movements of Oswald, Ruby, and other members of the mob to argue why and how Oswald did it and why the mob would want him silenced. Annotation copyrighted by Book News, Inc., Portland, OR