Petra Wunderlich, 29, of Hypoluxo, was killed in a traffic crash on I-95 about 3:30 a.m. May 31, 2001.  The accident set off a chain reaction and fiery blaze involving four other cars and a tanker truck.  Petra and Jessie Sims, 67, of Brooklyn, N.Y, were both killed when the semitrailer truck slammed into their cars as they sat in northbound traffic.