Guardian: IT expert: I worked with 7/7 bombers

[physicist]

A computer expert who worked alongside two of the July 7 bombers claims today that he tried to warn the police about their activities almost two years before the suicide attacks.

More...

http://www.guardian.co.uk/attackonlondon/story/0,,1804936,00.html

[numeral]

Also http://www.guardian.co.uk/attackonlondon/story/0,,1804930,00.html

"Martin 'Abdullah' McDaid did most of the talking, most of the ranting and raving; and as an ex-Marine, he knew about matters military."
He was ex-SBS, in fact:

"EXCLUSIVE: BOMBERS AND THE SPECIAL FORCES SOLDIER
They worked in same bookshop
By Lucy Thornton

A FORMER Royal Marine, who converted to Islam, last night denied preaching violence to the four London bombers.

Martin McDaid, who also served in the Special Boat Service, said he knew the four terrorists but had no negative involvement with them and was totally against violence."

Daily Mirror, 21 July 2005

Funny he should wind up in Beeston!