Unsolved: Hayward woman vanishes in 1971

She was six months out of high school, just starting college and about to start a new job. 19-year-old Christine Eastin, "Christy," as everyone called her, had saved up enough money to buy some boots that she wanted. So she phoned her friend Sandy to go shopping with her at Mervyn's on the night of Jan. 18, 1971.