Berlin begins building memorial to victims of Nazi 'euthanasia'

From the   this report on the building of a memorial to the over 200,000 people who died under the T4 euthanasia program that, itself, was the impetus for the Nazi extermination camps during the Second World War:German DW website
Artist impression of the T4 memorial
Officials have gathered in Berlin to lay the foundations for a monument to the people killed as part of the Nazi "euthanasia" programs. The symbolic site was chosen as it was the headquarters of the original project.
Building work began in Berlin on Monday for the city's fourth official monument to victims of Adolf Hitler's National Socialist government.
The planned exhibit at Tiergartenstrasse 4 in the capital will be dedicated to the victims of the "euthanasia" program used by the Nazis to kill those with physical or mental illnesses. Hitler's Nazi regime killed more than 200,000 people who were either psychotherapy patients or physically disabled between January 1940 and August 1941.
The euthanasia program was run out of the same Tiergartenstrasse address and was even codenamed "T4." A commemorative plaque has adorned the site since 1986.
The German minister for cultural state affairs, Bernd Neumann (pictured), attended the laying of the foundation stone on Monday, saying that the monument should set a sign "against hate, delusion and coldheartedness - and for tolerance, empathy and a respect for life."
The vice president of the lower house of German parliament, Wolfgang Thierse; the government's special representative for the disabled, Hubert Hüppe; and Berlin's senator for integration, Dilek Kolat, also attended the ceremony.