Stephen's brother Stuart Lawrence addresses the congregation. Credit: Victoria Jones/PABeverley Knight singing during the memorial service. Credit: Victoria Jones/PAPrince Harry and Meghan Markle arrive at the church. Credit: Victoria Jones/PAPrime Minister Theresa May addresses the congregation. Credit: Victoria Jones/PALabour leader Jeremy Corbyn speaks at the memorial service. Credit: Victoria Jones/PAMayor of London Sadiq Khan meeting Baroness Lawrence and Stuart Lawrence. Credit: Victoria Jones/PAThe service took place at St Martin-in-the-Fields in Trafalgar Square. Credit: Victoria Jones/PASir Lenny Henry speaking during the service. Credit: Victoria Jones/PABaroness Lawrence (right) with Metropolitan Police Commissioner Cressida Dick. Credit: Victoria Jones/PAPrince Harry and Meghan Markle are greeted by clergy. Credit: Victoria Jones/PAStephen Lawrence was murdered in 1993. Credit: Victoria Jones/PA