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- Aired in United States October 21, 1988
- Aired in United States October 23, 1988
- Producer-director David Wickes was granted access to documents previously sealed by the British government, which shed new light on the case. The series was filmed with four different endings to conceal the identity of the killer until air time.
- Michael Caine makes his American television acting debut.
- Began shooting March 14, 1988.
- Completed shooting May 31, 1988.