Sara Guglielmetti Since yesterday, Saturday, October 24, 2026, Youssef Sihari , a 30-year-old second-generation Italian, has been held in San Vittore prison. He is charged with incitement to crime and organized violence at public demonstrations, and is also under investigation for terrorism or subversion. His wife is also under investigation.
Youssef Siher Arrested: Hate Chats Discovered
Since yesterday, the 30-year-old second-generation Italian of Moroccan origins, Yussef Siher , has been in San Vittore prison.
Investigators are focusing their investigations on the seized cell phones and computers. Telegram chats have nearly 9.500 followers, while the Instagram page " Movimento 17 ottobre " has approximately 48 followers. Among the messages found in the chats: " They didn't stop us with laws. We won't stop us with armored vehicles." Analysis of the seized devices could reveal the contact details, communications, and organizational methods of the alleged network of those who attempted to foment the protests that saw young people, especially very young people, invade several Italian cities and reveal connections between seemingly distant worlds.
A response by Youssef Siher to a tweet by Matteo Salvini on X dated October 7, 2023, the day of the attack on Israel by Hamas, is also circulating on social media: “ Allah Akbar, ” the researcher wrote to the deputy prime minister who expressed support for Tel Aviv.
Youssef Siher arrested, charged with terrorism; his wife is also under investigation.
Youssef Siher, the 30-year-old considered the mastermind behind the Instagram page " Movimento 17 ottobre ," has been held in San Vittore prison since yesterday . The 30-year-old, a second-generation Italian, is charged with incitement to crime and organized violence at public demonstrations, and is also being investigated for terrorism or subversion. This subversive nature, according to the Milan Prosecutor's Office, has had concrete effects, such as panic among the public and the closure of several shops. His 32-year-old wife of Lebanese origins is also being investigated for the same crimes, in conjunction with her husband. The two are alleged to have run the Instagram and Telegram pages together. In the wife's case, the alleged crime is incitement to crime.