CHICAGO (WGN) — A renewed search for a couple at the center of a 50-year-old cold case has led to the discovery of nearly 100 cars that were submerged in the Chicago River.

Edward and Stephania Andrews were a married couple from Arlington Heights who disappeared on May 15, 1970.

The Chicago Tribune reports that the two were headed home in their yellow 1969 Oldsmobile after leaving a cocktail party at the Sheraton Hotel downtown, but they never made it.

The couple was reported missing the following Monday, but 55 years later, the mystery surrounding their whereabouts remains.

A renewed effort to locate them in 1994 provided investigators with few answers.

In another attempt to locate the missing couple, members of the Chaos Divers team jumped into the Chicago River last week in search

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