Known as Kaka (little one) by his family,[3] he attended Wortley High School, where he was described as politically moderate by his friends, who knew him as an outstanding sportsman, excelling at cricket, triple jump, long-distance running, football, and ju-jitsu.
Forensic evidence found in rucksacks after the abortive 21 July London attacks has linked those attacks to a second group of young men of Asian appearance who booked a rafting trip there on the same day as Tanweer and Khan [6][7] Relatives in Pakistan have said that Tanweer had boasted of wanting to die as a "holy warrior" and that he was enamoured with Osama bin Laden.
The Pakistani government has released footage of Tanweer arriving at Karachi International Airport with Mohammad Sidique Khan, believed to be the ringleader of the London bombers, on Turkish Airlines Flight TK 1056 on 19 November 2004.
[11] Intelligence sources say the school was located in Muridke, Pakistan, 20 miles outside Lahore, named Jamia Manzoorul Islam and is believed to be connected with Lashkar-e-Tayyaba, a banned militant Islamist group.
In Luton, the men boarded the 07.48 Thameslink train, arriving at King's Cross in London at 08.20 hours, where they went their separate ways and detonated their bombs.
In the video, which included remarks by al-Qaeda leader Ayman al-Zawahiri, Tanweer said: "What have you witnessed now is only the beginning of a string of attacks that will continue and become stronger until you pull your forces out of Afghanistan and Iraq.
Tanweer argued that the non-Muslims of Britain deserve such attacks because they voted for a government which "continues to oppress our mothers, children, brothers and sisters in Palestine, Afghanistan, Iraq and Chechnya" [12][13] Tanweer's statement was therefore clearer in making this link with British foreign policy than that of Mohammad Sidique Khan, the presumed lead bomber.
The video has also served to solidify speculation that both Khan and Tanweer had contact with Ayman Al-Zawahiri and other senior figures in the Al-Qaeda organisation while in Dubai.