in the permanent exhibition in Cologne, Schlosspark Stammheim 

A clown in the park - dances happily and playfully between the trees. But when you ask yourself why his statue stands in this place and when you read the title you begin to wonder and are prompted to think about it. Why is this a clown? A clown can also be sad or bored. He can also be a "killer clown". Who is hiding behind the mask? Shouldn't we therefore beware of the clown? And why did the media take over the expression "Doner Murders", which put the blame on the surrounding of the victims, from the police without questioning it?
The clown with his makeup confronts us with the question if that what we see and hear is really true. Why did nobody "want" to get to the bottom of these clear signs that neo-nazis were responsible for those murders. Not even racism was accepted as a motive for these crimes. Nobody wanted to tear away the clown's mask. Nobody wanted to "face" the facts: the traces of the crimes, which had been secured, the files, the murder weapons, the criminals themselves ...
The clown plays the game of the German "Verfassungsschutz", which is the internal secret police whose job actually is to protect the constitution. He shows us his grimacing face and behind it hides activities like the hushing up of facts, the destruction of files, the distortion of facts. We are supposed to be taken in by the way he stumbles about artistically, but not supposed to notice the things he trips over - namely the facts.

with Paul ter Veld