"On April 1, 1991, Detlev Karsten Rohwedder, President of the Treuhandanstalt, manager, politician, family man and long-time citizen of this city, was the victim of a cowardly attack in his apartment building," says a commemorative plaque that Rohwedder's family members shared with the Düsseldorfer on Friday Mayor Stephan Keller in the Niederkassel district unveiled.

Rohwedder is considered the last victim of an assassination attempt by the left-wing terrorist RAF.

On Easter Monday 31 years ago, Rohwedder had just got up from his desk on the first floor of his house when a gunman shot him through the window from behind the cover of the neighboring allotment;

his rushing wife was seriously injured by another bullet.

The perpetrator or perpetrators and the exact motive are still unknown today.

A hair was discovered on a towel that investigators seized at the scene of the crime, which could be assigned to RAF member Wolfgang Grams in 2001.

But there are suspicions that old SED and Stasi cadres may have staged the murder because Rohwedder, as head of the trustee, was responsible for the privatization of state-owned enterprises in the GDR.