People, many of whom are French, hold up their lit phones as they take part in a vigil in solidarity with France after the deadly attacks in Paris, in Trafalgar Square, London, Saturday, Nov. 14, 2015. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall.