Special Needs Prom Queen Beats the OddsA high school senior with a rare chromosome disorder wasn't supposed to have lived to see her 18th birthday. Not only did she live, she became prom queen. KGW's Ashley Korslien reports.Get more newsLiveonPrintMay 18, 2015, 5:32 PM UTC / Updated May 18, 2015, 5:32 PM UTC