A letter from Keiko Arimoto to her parents sent from Copenhagen in 1983 suggests she may have been forced to write it, and it was not posted until after she was abducted to North Korea, police sources said Thursday.
Unlike previous letters, the last letter Arimoto's parents received at their home in Kobe in October 1983 did not have her contact address or the date when it was written, the sources said.
A former college student from Kobe, Arimoto was studying English in London in 1983 before vanishing at the age of 23, apparently from Copenhagen. North Korea last week admitted abducting her and said she died in the country on Nov. 4, 1988, at the age of 28.