Did Dealey Plaza witnesses see “puffs of smoke” coming from the grassy knoll?  Thanks to Paul Vieille and Alfred Nobel, guns haven’t made puffs of smoke since the 19th century, except on television and in the movies.  From The Final Truth: “So either a professional assassin was attempting to assassinate the President of the United States with a musket or the witnesses were imagining things.”

http://www.thefinaltruth.net