Hollande leads tributes at Total CEO memorial French President Francois Hollande led tributes to Total's former chief executive at a memorial service on Monday, a week after his private jet crashed at a Moscow airport. Top figures from the world of finance and politics, including IMF managing director Christine Lagarde and the emir of Qatar, Sheikh Tamim bin Hamad al-Thani, also gathered at Paris's Saint-Sulpice church to remember Christophe de Margerie. IMAGES AND SOUNDBITES.