On July 14, 1988, 41-year-old Lisa Lau Tu, also known as Chuan-Yu Lau, was last seen at her home on Deep Spring Drive in Potomac, Maryland. Her common-law husband, Gregory Mung-Sen Tu, claimed he had taken her to the airport for a flight to San Francisco to visit a sick friend. However, investigation revealed that while a ticket was purchased in Lisa's name, the seat was empty during the flight. The friend in San Francisco was not sick and had not heard from Lisa in months, raising immediate con
...Read MoreLast Seen: Jul 14, 1988
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