A 21-year-old man has started trial in Hamburg for serious online crimes. Using the name White Tiger, he is accused of forcing children aged 11 to 15 to hurt themselves and even die by suicide. Authorities say his victims came from Germany, the UK, Canada, and the US. The man, called Shahriar J due to German privacy laws, has German and Iranian citizenship. He was arrested last summer at his parents’ house in Hamburg. Prosecutors say he committed 204 offences against more than 30 children between 2021 and 2023. Shahriar J is linked to '764', an international cyber-crime group described by the FBI as a network of violent extremists exploiting children. The man is accused of emotionally manipulating vulnerable kids through social media. He then made child pornography and pressured victims to perform self-harm or sexual acts live online. Reports say a 13-year-old boy from the US died by suicide during a live online session. A 14-year-old Canadian girl reportedly tried to do the same. Prosecutors charge Shahriar J with one murder and five attempted murders as an "indirect perpetrator." He reportedly recorded children harming themselves and threatened to share the videos unless they worsened the violence. The man’s lawyer, Christiane Yüksel, called the allegations "baseless and fabricated." She said the murder charge using "double indirect perpetration" is "factually incorrect and cannot be proven." Because some offences happened when Shahriar J was a teenager, the trial is held behind closed doors.