I found this on SEEN's facebook page:
It is with great sorrow we announce the passing of the suisse graffiti legend Sigi von Koeding aka Dare. We’ve been told that Dare died at the hospital in Basel (Switzerland) the evening of 06th march 2010.
Sigi von Koeding lost his life in cancer battle.
He will be fondly remembered and missed by his family, friends and many fans around the world.
Rest in Peace
Sigi von Koeding
1968 - 2010