The Krahestraße in Düsseldorf is in a working-class area near the main train station. For years it's been known for something vicious and ugly: An apartment house owner, Heinz Nieder, wanted to flush out some inconvenient tenants who opposed a renovation, so he hired a workman to open a gas pipeline in the basement of his own apartment building at night.

Six people died in the resulting blast (g), two others were severely injured. The series of resulting trials of the home owner, Heinz Nieder, must count as one of the most humiliating debacles in post-war German justice: he was forced to languish in 'investigative custody' for so long (eventually eight years in total) that the Federal Constitutional Court set him free. Then  two trials against him were overturned on appeal (g) by the German High Court. During much of this judicial odyssey, he was often seen (g) in Düsseldorf's trendy Oberkassel neighborhood, taking walks or sipping espresso.

He was finally sentenced and the verdict upheld on appeal only in 2009. The sentence was life imprisonment (actually a 15-year minimum sentence). The prosecutor's office — believe it or not — sent him a letter asking him to show up for his life prison sentence, please. The letter was sent to his last registered address. Shockingly, it turns out that Mr. Nieder hadn't lived there for at least 3 months (g). He had gone underground and remained on the run for much of mid-2009, working as a renovator. He was picked up only with the help of 'Detective Serendipity' (Kommisar Zufall), as the Germans say — he was found outside a hotel in Marburg Germany full of pills and confused, apparently the result of a suicide attempt. He said he was Ralf Möller from Cologne, but police at the hospital recognized his face (g) from the wanted poster. As of 2011, he was serving his sentence as a cook in a prison hospital (g).

So much for the story of the despicably greedy landlord. Now to the story of the enlightened, art-loving landlord, which also takes place in the Krahestrasse, next to where Heinz Nieder murdered six people. I was biking by there recently and came upon the freshly-completed series of apartment houses forming the 'Mosaic Facade':

The project was the brainchild of landlord Hans-Rainer Jonas, who has a 'social vein' and prides himself on charging reasonable rents and providing communal space for his tenants. He originally thought of Hundertwasser to decorate the facades of his houses, but then chose the Düsseldorf artist Josipa Horvat. She involved a team of other artists and also residents (g). Sometimes children would come by with fragments of mirror or crockery which would be mosaiced right in next to everything else.

I have my doubts about some urban public art projects, but I love this one. Cheerful without being saccharine, whimsical, and beguilingly curvy. Makes me want to move…