Authorities are calling last week's death of a Dawsonville woman and her special needs teenage son a murder-suicide. Dawson County Sheriff's spokesman Capt. Tony Wooten said authorities believe Nina Hicks, 53, shot and killed her 14-year-old son, Dustin Hicks, before turning the gun on herself. Their bodies were found Thursday in the basement of their southeastern Dawson County home near Ga. 400 in the Biscayne subdivision.