By Dominic Casciani Five young British Muslim men have been jailed for downloaded and sharing masses of extremist material. During their trial they argued that they were not terrorists but intellectually curious. But what evidence convinced the jury they had gone too far? When Mohammed Irfan Raja quietly walked out of his family home in Ilford, east London, on 24 February 2006, he had dreams of becoming known for something more than the 18-year-old schoolboy he then was. But today, as the 19-year-old and four men from Bradford University begin jail sentences, his name becomes just another associated with the jihadi extremism of radicalised young British Muslim men. In one of the first trials of its kind Raja, Awaab Iqbal, 20, Aitzaz Zafar, 20, Usman Malik, 21, and Akbar Butt, 20 have been jailed for downloading and sharing extremist terrorism-related material.