Editing Munich massacre (section)

==Planning and German involvement==
Historical documents released to ''Der Spiegel'' by the German secret service show that [[Dortmund]] police had been aware of collaboration between [[Abu Daoud]] and neo-Nazi [[Willi Voss|Willi Pohl]] ({{aka}} E. W. Pless and, since 1979, officially named Willi Voss) seven weeks before the attack.<ref>[http://www.thelocal.de/national/20120617-43199.html Neo-Nazi 'aided Munich Olympics massacre'] {{Webarchive|url=https://web.archive.org/web/20120619044819/http://www.thelocal.de/national/20120617-43199.html |date=19 June 2012 }}, The Local 17 June 2012</ref>

The historian [[Wolfgang Kraushaar]] has suggested that the left-wing militant [[Wilfried Böse]] may have also provided support for the attack.<ref>{{cite news | last=Weinthal | first=Benjamin | url=https://www.jpost.com/international/leftists-not-neo-nazis-helped-in-munich-massacre | title=Leftists, not neo-Nazis, helped in Munich massacre | newspaper=Jerusalem Post | date=24 June 2012}}</ref>