Langness, Dr. David G. “Dave”, of St. Charles, MO, died on Sunday, April 25, 2010 at the age of 56. Loving husband of Cynthia NEE: Goulet; beloved son of Gilbert and Helen; devoted father of Michael , Nicole, David Jr., Danielle and Benjamin; dear brother of Steven (Sandy), Ricky and Dr. Kathy Langness; dear son-in-Law of Dale (Bonnie) Goulet; beloved brother-in-law, uncle, nephew, cousin and friend to many.