The family of the fourth bomber Germaine Lindsay have described their horror at the London bomb attacks.
Germaine Lindsay has been named by police as one of the bombers
The statement on behalf of his wife Samantha Lewthwaite and his relatives also offered their condolences to the families of the victims.
They describe Germaine, 19, as having a "kind, caring and calming presence about him".
The family, who lived in Aylesbury, Bucks, say had no inkling of his plans to take part in the attacks.
The statement was issued by relatives Andrew, 49, Sabrina, 28, Allan, 25, and Carly, 21.
The statement read: "Germaine was a good and loving husband and a brilliant father, who showed absolutely no sign of doing this atrocious crime.
"We as a family had no idea of his plans and are as horrified as the rest of the world.
"We are still in shock about the news we have been given, and are trying to understand why anyone, never mind Germaine, would do such a thing.
"We plead to anyone who has information to help police with their investigations to stamp out these terrorists.
"We would like to thank all those people who have shown us that they are true friends for all their support."