The Bremen public prosecutor's office examined after the attack on the AfD politician Frank Magnitz an alleged letter of confession. A spokesman said on request. The text was briefly on Wednesday evening on the platform "Indymedia" to see and was then deleted.
The SPIEGEL has a screenshot. The text states that Magnitz was attacked by the group "Antifaschistischer Frühling Bremen". Whether the text is authentic is unclear.
Soon more on SPIEGEL ONLINE.