[8] The claim of responsibility for the deadly attack on the magazine came in a video showing AQAP commander Nasr Ibn Ali al-Ansi, with gunmen in the background that were later identified as the Kouachi brothers.

Amedy Coulibaly, who committed another leg of the attacks (the Montrouge shooting and the Hypercacher Kosher Supermarket siege) claimed that he belonged to ISIS before he died.

On December 16, 2020, 14 people who were accomplices to both the Jewish supermarket attack and the Charlie Hebdo shooting, including Coulibaly's former partner Hayat Boumeddiene, were convicted.

[10] French armed forces and police conducted simultaneous raids in Dammartin and Porte de Vincennes, killing all three attackers.

After 12 January 2015 and for an indefinite period, as part of Operation Sentinelle, nearly 10,500 military personnel were deployed in France to secure 830 sensitive places (school, churches, press organizations, etc ).

At the time, the attacks comprised the deadliest act of terrorism in France since the 1961 Vitry-Le-François train bombing by the Organisation armée secrète (OAS), which was working against Algerian independence.

[12] The second attack occurred in Dijon, in which a man used a vehicle to run over eleven pedestrians in several areas of the city before being arrested.

[17] Two gunmen, later identified as Chérif and Saïd Kouachi, entered the building and fatally shot eight employees, two police officers, and two others, and injured eleven other people.

Shell casings found at the scene were later linked to the weapon carried by Amedy Coulibaly at the Hypercacher Kosher Supermarket hostage crisis on January 9.

[17] Coulibaly reportedly was heard to declare allegiance to ISIS, a Salafist terrorist organization at war in the Middle East.

[24] On 9 January, the assailants of the Charlie Hebdo shooting, Chérif and Saïd Kouachi, went to the office of Création Tendance Découverte, a signage production company on an industrial estate in Dammartin-en-Goële.

[25] Also on 9 January, Amedy Coulibaly, armed with several assault weapons, entered a Hypercacher kosher supermarket at Porte de Vincennes in east Paris.

[31] Hayat Boumeddiene, Coulibaly's partner in crime and wife, was suspected to have been present during the incident but it was later confirmed that she left France before any of the shootings occurred, traveling to Syria from Turkey.

After 12 January 2015 and for an indefinite period, as part of Operation Sentinelle, nearly 10,500 military personnel were deployed in France to secure 830 sensitive places (school, churches, press organizations, etc ).

[19] At the time, the attacks comprised the deadliest act of terrorism in France since the 1961 Vitry-Le-François train bombing by the Organisation armée secrète (OAS), which was working against Algerian independence.

[36][37] The websites of French businesses, religious groups, universities, and municipalities were also hacked and altered to display pro-Islamist messages.

The French interior department reported that 54 anti-Muslim incidents were recorded in France in the first week after the shootings; this compared to 110 complaints in the first nine months of 2014.