List of unsolved murders (20th century)


This list of unsolved murders includes notable cases in which victims have officially been found to have been intentionally killed by others, but no one has ever been successfully prosecuted for the crimes.

1901–1924

," is one of the most famous victims of an unsolved murder in American history.
, murdered in Isojoki, 1953. Her case remains one of Finland's major unsolved murder cases
. Found murdered on 26 July 1974 in Provincetown, Massachusetts
is an unidentified murder victim found in Texas. She was murdered on 31 October or 1 November 1980
child abduction alert system, implemented across America, is named after nine-year-old Amber Hagerman