A parent’s worst nightmare came out of Africa last week with the news that a 24-year-old Peace Corps volunteer, Cathrine "Kate" Puzey, had been murdered. Formerly of Cumming, Kate received a sociology degree from William and Mary in 2006, joined the Peace Corps and had been teaching English in a small village in Benin since July 2007. Her two-year hitch in West Africa was almost up.Neither the Peace Corps nor the State Department has been forthcoming with any details of Kate’s murder; related articles on international news services are scarce and incomplete.That irritates me, the ordinary