This 12 September 2018 German video is about an anti-racist demonstration in Hildesheim.
Translated from Dutch NOS radio today:
German arrested for plotting attack on Muslims
German justice suspects a 21-year-old man from Hildesheim of threatening an attack that would kill people. In a chat message on the internet, he referred to the right-wing extremist perpetrator of the attack in Christchurch in New Zealand. …
According to the public prosecutor, he intended to kill Muslims. Weapons were found in his home. The police also found databases with radical right-wing content. …
According to the police, he was an “extreme risk”. …
During the attacks in two mosques in Christchurch, a terrorist opened fire on visitors last March. 51 people died.