by Melanie Tem
For Renata Burgess -- wife, mother, social worker and writer -- Friday, March 18, 1988, is just the start of a busy weekend. Her daughter's going to a birthday party sleepover. Her elder son will be over for Sunday dinner, her nine-year-old boy clamoring to have a friend over. Just a normal Friday. Until 8:20 PM -- when one of her children is found dead.