title: Britain has identified a suspect in London train bomb: Sky News
text: LONDON (Reuters) - British security services have identified a suspect involved in the bombing of a busy commuter train in west London with the help of surveillance footage, Sky News reported, citing security sources.  Security sources say they ve identified a suspect involved in the Parsons Green bombing, with the aid of CCTV footage,  Mark White, a home affairs correspondent for Sky News, said on Twitter.  