disappearance of Jim Thompson
March 26, 1967
Cameron Highlands
disappearance of Harold Holt
Dec. 17, 1967
Victoria
Disappearance of Helen Claire Frost
Oct. 13, 1970
Prince George
disappearance of Adrien McNaughton
June 12, 1972
Holmes Lake
disappearance of Kristin Smart
May 25, 1996
California Polytechnic State University
disappearance of Brian Shaffer
April 1, 2006
Columbus
disappearance of Madeleine McCann
May 3, 2007
Praia da Luz
disappearance of Amy Fitzpatrick
Jan. 1, 2008
Mijas Costa
disappearance of Ayla Reynolds
Dec. 16, 2011
Waterville
disappearance of Ayla Reynolds
Dec. 17, 2011
Waterville
Case of Amarildo de Souza
July 14, 2013
Rocinha
Santiago Maldonado case
Aug. 1, 2017
Chubut Province
disappearance of Maëlys de Araujo
Aug. 27, 2017
Le Pont-de-Beauvoisin
disappearance of the ARA San Juan
Nov. 15, 2017
Argentine Sea