Analysis of a telephone call established Abaaoud was in contact with Mehdi Nemmouche during January 2014 . Nemmouche , a Franco-Algerian jihadist , shot and killed four people at the Jewish Museum in Brussels on 24 May 2014 . Belgian authorities suspect him of having helped to organize and finance a terror cell in Verviers . This cell was raided on 15 January 2015 and two members of the cell were killed . In an interview with '' Dabiq '' , the magazine of the Islamic State of Iraq and the Levant ( ISIS ) , Abaaoud bragged on social media about going to Belgium to lead the cell but escaped back to Syria , even being stopped by a police officer who compared him to a photo but did not identify him . In July 2015 , following the Verviers raid , he was convicted in absentia and sentenced to twenty years in prison by a Belgian judge for organizing terrorism
shot and killed four people
Jewish Museum of Belgium shooting
Abdelhamid Abaaoud