Table of Contents Executive Summary………………………………………………………………………….……… 2 Key Implications………………..……………………………………………………………………. 3 Introduction……………………………………………………………………………………………. 5 Methodology...………………………………………………………………………………...……… 6 1.! Profiles: Brussels-Paris related Networks 1.1 Brussels: Attackers…………………………………………………………………………………... 8 1.2 Brussels: Accomplices…………………………………………………………………………….… 13 1.3 Paris: Attackers…………………………………………………………………………………….….. 18 1.4 Paris: Accomplices……………………………………………………………………………….….. 28 1.5 Zerkani Network………………………………………………………………………………….….. 34 1.6 Islamic State……………………………………………………………………………………….…… 42 1.7 Other……………………………………………………………………………………………….…….. 47 2.! Profiles: Al-Qaeda-inspired Networks 2.1 The Rotterdam Cell: US Embassy and Cultural Centre Plot…………….…….…….. 50 2.2 Rotterdam Cell: Accomplices……………………………………………………….…………... 57 2.3 The ‘Frankfurt Cell’: Strasbourg Market Plot…………………………………..……….…. 61 2.4 Frankfurt Cell: Accomplices………………………………………………………….……..…… 70 2.5 NATO Airbase Plot Network…………………………………………………………..……….. 74 2.6 NATO Airbase Plot Network: Accomplices…………………………..………….….……. 76 2.7 Abu Doha Network………………………………………………………………………….……… 78 2.8 Other……………………………………………………………………………………………….…….. 82 3.! Analysis………………………………………….……………………………..…………………… 91 4.! Conclusions and Implications………………………………………………………………. 106 Appendix A: Network Maps Brussels Attacks……………………………………………………………………………………………. 116 Paris Attacks…………………………………………………………………………………………………. 117 Zerkani Network…………………………………………………………………………………………… 118 New Network Connections…………………………………………………………………………….. 119 US Embassy & Cultural Centre Plot/Rotterdam Cell………………………………….…..…. 120 Strasbourg Plot/Frankfurt Cell……………………………………………………………………..…. 121 Abu Doha Network…………………………………………………………………………….…………. 122 Old Network Connections……………………………………………………………………….…….. 123 Network Connections……………………………………………………………………………………. 124