ISIS claimed the attacks as retaliation for French airstrikes. Attackers killed 130 and injured 416, mostly at Bataclan theatre. Three teams executed six coordinated strikes including bombings near Stade de France and shootings at cafes. Most attackers were French or Belgian-born of Moroccan or Algerian descent, two Iraqis. Some attackers returned to Europe among Syrian migrants and refugees. Attacks planned in Syria by Belgium-based ISIS cell led by Abdelhamid Abaaoud. Attackers shouted Allahu Akbar while firing on crowds. Bataclan gunmen of Algerian descent killed 90 using assault rifles then took hostages. Seven attackers died detonating suicide vests, two more killed in raid. Salah Abdeslam, Belgian of Moroccan descent, drove bombers but aborted suicide mission. Perpetrators fought in Syria and radicalized there. Attacks deadliest in France history and EU since 2004 Madrid bombings. French response included state of emergency, mass raids, and escalated airstrikes on ISIS. Trial convicted 20 including Abdeslam to life without parole. Many attackers known terrorism suspects but crossed borders freely. Some perpetrators lived in Brussels Molenbeek jihadist hub.