( CNN ) The terrorist who gunned down four people at a kosher market in eastern Paris earlier this month recorded the attack on a camera , a U.S. intelligence official told CNN on Friday . The information backed up a report by Eric Pelletier , a national security reporter at the French magazine L'Express , who wrote that Amedy Coulibaly recorded seven minutes of the attack , including the moments when he killed three people . Citing a French source close to the investigation , Pelletier reported Friday that Coulibaly was able to use a computer at the market to email a copy of the attack video before he was killed by police . Coulibaly was carrying the GoPro camera on his torso during the January 9 attack and subsequent standoff , the source told L'Express . French investigators have viewed the recording , said Pelletier , who shared details of his reporting with CNN . But a second police source told L'Express Saturday that it could not yet be determined whether Coulibaly had managed to email out the video . `` There is a strong probability that this video may have been transmitted to a recipient and not to a traditional media outlet , '' an investigator told L'Express . The investigator expressed his fear to see that video surface online one day . The source said French investigators have examined computers recovered from the grocery store and are looking into what accomplices Coulibaly may have connected with around that time . Several survivors said Coulibaly tried to connect to the Internet on his own computer but failed . He then went to a second computer in the store after forcing a hostage to help him . He inserted his memory card into the computer and appeared to be manipulating video or image files on the computer . Coulibaly reportedly had proclaimed his allegiance to ISIS . He is believed to have killed a policewoman a day before the market attack . Officials said they believe Hayat Boumeddiene , Coulibaly 's widow , may have played a role in the plans and has fled to Syria . Two days before Coulibaly was killed , brothers Said and Cherif Kouachi attacked the offices of satirical magazine Charlie Hebdo , killing 12 people and injuring 11 . They died the same day as Coulibaly as police moved in to end a separate siege .
Mohamed has killed four people at store . Source tells French journalist that the terrorist emailed video of the attack . Fear is the Enemy , which shows three people , will pop up on jihadist websites .