For nearly twenty years, public safety professional and historian Chriss Lyon has not only walked the beat, but shot the most famous Thompson submachine guns in the world, all while documenting and researching the historic era of the "The Roaring Twenties." Using techniques of forensic genealogy combined with investigative research, she has been able to uncover little known facts about the people and events surrounding the St. Valentine's Day Massacre, revealing them at presentations at schools, museums, genealogical, and historical societies. Her passion in Prohibition-era gangsters, maritime, and aviation history as well as historical weather has afforded opportunities to write articles for various magazines and journals and assist other authors with historical research. A graduate of Grand Valley State University's Film/Video School, Chriss began working behind the scenes at CNN Headline News but now is out in front of the camera. She has appeared in an episode of the PBS series, "History Detectives" as well as documentaries on the National Geographic Channel and Investigation Discovery Channel.