Mark founded the group '17-24-30' in 2009 in the lead up to the 10th anniversary of the London Nail Bomb attacks. The campaign has four main objectives: - To bring people together - To build relationships between communities - To support those who have been attacked - To challenge ALL forms of Hate Crime In October 2009 thousands gathered at a candle-lit vigil organised by '17-24-30' following a homophobic attack in Trafalgar Square for a programme of inspirational speakers, music, a two minute silence and a roll-call to remember those lost to Hate Crime. This event was repeated in 2010 and was supported by both 10 Downing Street and the London Mayor's Office. The 2011 VIGIL AGAINST HATE CRIME hopes to echo the success of previous years to unify and galvanise all individuals and communities to eradicate bigoted behaviou and, through showing support for all victims of Hate Crime, publicly asserting a powerful and united voice to affect change in London, the United Kingdom and the wider world. '17-24-30' represents the three dates in April that the nail bombs were left in Brixton (17th), Brick Lane (24th) and Soho (30th) targeting the black, Asian and gay communities.