A speech by a Muslim cleric praising the London bombers and mocking victims of suicide attacks has been broadcast on the internet to coincide with the anniversary of the July 7 attacks. The audience laughs as Omar Brooks, a British Muslim convert who also uses the name Abu Izzadeen, makes fun of non-Muslims as “animals” and “cowards”.Brooks — who has previously described the London bombers as “completely praiseworthy” — identifies with the views of Mohammad Sidique Khan, the ringleader of the London attacks. He contrasts the supposed bravery of Khan’s suicide to the “kuffar” (non-Muslims) who are characterised as debauched binge-drinkers who vomit and urinate in the street. At one point he announces dramatically that the September 11 attacks on the World Trade Center “changed many people’s lives”. After a pause, he brings the house down by adding: “Especially those inside.” Brooks, 31, a former electrician who was born into a Christian family of Jamaican origin in east London, is already under police investigation. Police submitted a file on his activities to the Crown Prosecution Service last month after an undercover investigation by The Sunday Times last July tape-recorded him imploring Muslims to “instil terror into the hearts of the kuffar”. His latest speech was at an event entitled “How can we prevent another 7/7?” and organised by a little known umbrella group called the Islamic Research Forum. It includes members of Al-Ghurabaa and the Saviour Sect, both formed from the break-up of Al-Muhajiroun, the Islamic organisation that described the September 11 terrorists as the “Magnificent 19”. The video of last Sunday’s speech was posted on the Al-Ghurabaa website ahead of Friday’s memorial service for the 52 people who were killed by the four suicide bombers.