By Philip Rosenbaum
(CNN) — When Rosa Glover brought her 19-month-old son to a New York City playground in 1989, she had no idea tragedy was about to strike a second time in the same place.
Shane Walker vanished in 1989 in a New York park.
In May 1989, 2-year-old Christopher Dansby disappeared from his grandmother’s sight on that playground.
Not quite three months later, on a hot August day, Glover’s son, Shane Walker, vanished.
PHILIP ROSENBAUM 