Career
In 1991, he was convicted of the murder of six people as part of a major insurance fraud. Proksch died in prison. In 1977, the ship Lucona sank in the Indian Ocean, after an explosion, killing six people.
Proksch, the owner of the cargo, also then owner of famous Viennese confectioners" Demel, claimed United States$20 million from his insurance company, saying that the ship was carrying expensive uranium mining equipment.
In 1990, Lucona was located by American shipwreck hunter David Mearns, revealing that the ship had been sunk by a time bomb. Several ex-Ministers were eventually convicted over their involvement.
The ex-Minister of Foreign Affairs was sentenced for forging documents authenticating the cargo. Two other Ministers were dismissed for obstructing the investigations.
The Minister of Defense Karl Lütgendorf, a shareholder in the Proksch firm, had given permission to deliver explosives to sabotage the ship and committed suicide when that became clear.
In 1988, Proksch fled to the Philippines after Hans Pretterebner published a book about the scandal. In 1989, he returned to Vienna, incognito, but was recognized and arrested. On March 11, 1991, he was sentenced to 20 years in prison.
A year later, the sentence was increased to a lifelong term in prison.
He died on June 27, 2001, during heart surgery. Proksch was the first husband of the actress Daphne Wagner, daughter of Wieland Wagner, great-granddaughter of the composer Richard Wagner and great-great-granddaughter of Franz Liszt.