A video grab of CCTV footage released by police on February 20, 2007 shows who they say is Yassin Omar wearing a burka at a coach station in Birmingham on July 22, 2006. Prosecutors say Omar, who is currently on trial charged with planning to kill commuters on July 21, fled London in the traditional Muslim women's dress the day after he made a failed attempt to detonate a rucksack bomb on a Tube train near London's Warren Street station. Omar has denied the charges. REUTERS/Police handout via Reuters TV (BRITAIN). EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.