::::::::: REUTERS - UK NEWS :::::::::                    Decontamination of shopping centre after nerve agent attack on Russian spy completed          As Zuckerberg heads to Brussels, MPs ask for answers          UK chief executives become more downbeat about growth - KPMG          Bereaved father weeps for lost baby at London's Grenfell fire inquiry          Former London mayor Livingstone quits Labour over antisemitism accusations          Meghan Markle's nephew warned by police after taking knife to London club - Sky News          Russian 'dirty money' flowing through London damages UK - MPs          Meghan and Harry release official photos of their royal wedding          Britain more welcoming to migrants, says Brexit-supporting minister Gove          London underground drivers to hold two days of strike in June - union