The Suspects

Sarah Challands, CTV.ca News

The four men who carried out the deadly attacks on July 7 were Britons who led apparently normal lives.

Security cameras at London's King's Cross station captured the four standing together in the morning of the attacks, chatting casually and wearing backpacks before heading off in separate directions.

The perpetrators of Britain's first suicide bombings killed 52 people and injured 700 on London's transit system.

Tanweer delivered his last will and testament in English.

Shehzhad Tanweer, 22, Aldgate bomber

British-born Tanweer was the son of a Pakistani merchant. He helped out at his family's fish-and-chip shop and graduated with a degree in sports science at Leeds University.

He loved playing cricket and played a long match on the night before the bombings.

Friends said he was quiet and very religious but grew increasingly angry over the U.S. led invasion in Iraq. He is reported to have been at an Islamic study camp in Pakistan earlier this year.

"He was a Muslim and he had to fight for Islam. This is called jihad," or holy war, Asif Iqbal, who said he was Tanweer's childhood friend, told The Associated Press.

"They're crying over 50 people while 100 people are dying every day in Iraq and Palestine," Iqbal added.

Tanweer detonated his bomb on the eastbound Circle line, killing six others.

Mohammad Sidique Khan, 30, Edgware Road bomber

Teaching assistant Mohammad Sidique Khan lived in the Dewsbury area of Leeds and was married with a very young daughter.

He worked at Hillside Primary School in Leeds where he appeared well-liked by staff and parents.

Former students at the school said he left for Pakistan last December to look after his ailing father. It was not clear when he returned to Britain.

According to a British newspaper report, Khan was the subject of a British secret service assessment in 2004 and was deemed not to be a threat.

Following the attacks a video message recorded by Khan emerged in which he said he was a "soldier" at "war". His bomb, detonated on a westbound Circle Line train, killed seven people.

Germaine Lindsay, 19, Russell Square bomber

Police sources named the fourth suicide bomber as Jamaican-born British resident Germaine Lindsay, who had converted to Islam.

He lived in Aylesbury, Buckinghamshire, with his pregnant wife Samantha Lewthwaite and their 15-month-old son.

In a statement, Lethwaite said she "never predicted or imagined that he was involved in such horrific activities".

U.S. authorities said Germaine had visited the U.S. since 2003 and the FBI investigated contacts he made in Ohio and New Jersey.

Lindsay, who used the name Jamal after his conversion to Islam, carried out the most deadly of the bombings, killing 26 on the Piccadilly line train between Kings Cross and Russell Square stations.

Hasib Mir Hussain, 18, Tavistock Square bomber

Hasib Hussain had lived all his life in the Holbeck area of Leeds. He told his parents he was going to London on July 7 to attend a religious studies seminar. The six-foot-tall soccer player had become a devout Muslim after a visit to Pakistan, his parents' homeland, during the past two years.

While his friends said Hussain had become more religious, they said he had never abandoned his friends for radicals. His family, who initially reported Hussain as missing after the attacks, said they were "devastated" to learn he was the bus bomber who claimed 13 lives on the number 30 double-decker bus near Tavistock Square.

Hussain's identification, and remains matching his description, was found by police at the bomb site. Based on CCTV images, police were able to determine that he arrived at Luton station, carrying a backpack, on the Thursday morning at about 7:20 local time.