According to The New York Times, the group chats were found on the phone of a teenager accused of committing two school shootings in November, which left three dead and 13 people injured. Authorities said they saw murder tutorials, bomb-manufacturing instructions and violent videos in those group chats, in addition to Nazi content. Brazilian justice minister Flavio Dino said: “The so-called antisemitic movement is acting in these networks. And we know that this is at the base of violence against our children, our teens.”

Judge da Silva explained that Telegram only handed over information on the administrator of a channel named the “Brazilian Anti-Semitic Movement.” It failed to give authorities information on members of that group and any data from another channel called “Anti-Semitic Front.” The service reportedly said that the groups had been deleted and that it couldn’t recover any information, but that wasn’t enough to justify not complying with the court’s subpoena to the judge

The Brazilian Supreme Court previously banned Telegram for failing to freeze accounts spreading disinformation ahead of last year’s presidential elections. However, the ban was reversed in just a couple of days, and Telegram blamed its noncompliance to lost emails.