Counter investigating the testimony of Andres Temme in relation to the murder of Halit Yozgat in Kassel, 6 April 2006

Commissioned by the People’s Tribunal “Unravelling the NSU Complex”; Haus Der Kulturen Der Welt (HKW); Initiative 6 April; and documenta14

Shortly after 17:00 on the 6 April 2006, Halit Yozgat, 21 years old, was murdered while attending the reception counter of his family run Internet café in Kassel, Germany. His was the ninth of ten racist murders performed by a neo-Nazi group known as the National Socialist Underground or NSU across Germany between 2000 and 2007. 

At the time of the killing, an internal security agent of the State Office for Constitutional Protection (Landesamt für Verfassungsschutz) of the German state of Hessen named Andreas Temme was present in the shop. He did not disclose this fact to the police but was later identified from his internet records.

In his interrogation by the police and in the subsequent NSU trial in Munich, Temme denied being a witness to the incident and claims not to have noticed anything out of the ordinary. The court accepted his testimony. It determined that Temme was present at the back room of the internet café at the time of the murder. It also accepted that from his position in the shop it was possible not to have witnessed the killing.

Within the 77 square meters of the Internet café and the 9:26 minutes of the incident, different actors crossed paths — members of migrant communities, a state employee and the murderers — and were architecturally disposed in relation to each other. The shop was thus a microcosm of the entire social and political controversy that makes the “NSU Complex”.

In November 2016, eleven years after the murder, the People’s Tribunal “Unraveling the NSU Complex” commissioned Forensic Architecture to investigate Temme’s testimony and determine whether it could be truthful.

This investigation was presented at the Hessen parliamentary inquiry on 25 August 2017. Our response to these recent developments is available here.

Forensic Architecture team

  • Eyal Weizman (Principal Investigator)
  • Christina Varvia  (Project & Research Coordinator)
  • Stefanos Levidis
  • Omar Ferwati
  • Simone Rowat
  • Nicholas Masterton
  • Yamen Albadin
  • Ortrun Bargholz
  • Eeva Sarlin
  • Franc Camps-Febrer
  • Hana Rizvanolli
  • Sarah Nankivell
  • Chris Cobb Smith (Advisor)
  • Lawrence abu Hamdan (Advisor)


  • Ayşe Güleç / People’s Tribunal “Unravelling the NSU Complex”, Initiative 6 April and documenta 14
  • Natascha Sadr Haghighian / People’s Tribunal “Unravelling the NSU Complex” and Initiative 6 April
  • Fritz Laszlo Weber / People’s Tribunal “Unravelling the NSU Complex”, Initiative 6 April and documenta 14
  • Cordula Hamschmidt / HKW
  • Khaled Abdulwahed
  • Cem Kayan
  • Vanina Vignal
  • Sebastian Bodirsky / People’s Tribunal “Unravelling the NSU Complex”
  • Dr. Salvador Navarro-Martinez / Imperial College London
  • Grant Waters / Anderson Acoustics
  • Armament Research Services (ARES)
  • Mihai Meirosu / Nvision Audio
  • Christopher Hupe / HKW
  • Frank Bubenwer
  • Gozen Atila
  • Markus Mohr / People’s Tribunal “Unravelling the NSU Complex”
  • Mathias Zieske
  • Serdar Kazak
  • Norma Tiedemann
  • Basak Ertur


Kriminalität: Forensic Architecture | BR Capriccio, 7 November 2017

A German Intelligence Agent Was at the Scene of a Neo-Nazi Murder. He Can’t Explain Why. | The Intercept, 18 October 2017

Forscher verteidigen Gutachten zu NSU-Mord in Kassel | Monopol, 17 September 2017

documenta14: der NSU-Mord in Kassel | Metropolis, ARTE TV, 1 September 2017

V-Mann Temme in der “Mausefalle” | der Freitag, Edition 35, 30 August 2017

Reestablishing Facts in the Post-Truth Era | ARCH+, Issue 229: In The End, Features 67, 25 July 2017

77sqm_9:26min | E-Flux Architecture, 24 July 2017

Documenta Kassel: Using art as their witness | New York Times, 23 June 2017

The most important piece at documenta 14 in Kassel is not an artwork. It’s evidence. | Artnet, 8 June 2017

Architects seek to debunk spy’s testimony in neo-Nazi murder trial | The Guardian, 7 April 2017

Die Pulverwolke | Süddeutsche Zeitung, 5 April 2017

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