7 July London bombings: 'I don't forgive 7/7 bombers'
A Cardiff man whose sister was killed in the 7 July London bombings said he cannot forgive the "incredible evil" that took her life 10 years ago.
Rob Webb said four suicide bombers with explosives in their rucksacks knew what they were doing when they "pressed a button" in 2005.
Three detonated on the Underground and one on a double-decker bus, killing 52.
Laura Webb, 29, and five others died when Mohammad Sidique Khan exploded his bomb at Edgware Road at 08:50 BST.
Mr Webb spoke to BBC Radio Wales' Jason Mohammad programme.