Who was Farhad N. and what drove him? This query issues the investigators. The search shouldn’t be straightforward. A judgment of the Munich Administrative Court exhibits that the Afghan advised the German authorities a mendacity story.
https://www.welt.de/politik/deutschland/plus255456744/Farhad-N-Diese-Maerchen-tischte-der-Amokfahrer-von-Muenchen-den-Behoerden-auf.html