John Constancio Muñoz, 78, of Las Vegas died March 7, 2012, after a two-year battle with cancer. He was a retired construction supervisor. John is survived by his wife, Sandra; and daughters, Tara Mogannam and Laura Muñoz. Memorial service at 1 p.m. March 16, at Palm Mortuary, 7400 W. Cheyenne Ave., Las Vegas, NV 89129. In lieu of flowers, donations can be made to the American Cancer Society.