Story highlights Amedy Coulibaly killed four people at store

Source tells French journalist that the terrorist emailed video of the attack

Fear is the video, which shows three killings, will pop up on jihadist websites

(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.

Photos: Paris attacks: Jewish terror victims remembered Photos: Paris attacks: Jewish terror victims remembered Israeli mourners hug at the funeral in Jerusalem on January 13, 2015 of four French Jews, Philippe Braham, Yohan Cohen, Yoav Hattab and François-Michel Saada, killed in an attack on a kosher supermarket in Paris last week. Hide Caption 1 of 8 Photos: Paris attacks: Jewish terror victims remembered The family of Hattab gather around a symbolic coffin for his funeral procession in the city of Bnei Brak near Tel Aviv. Hide Caption 2 of 8 Photos: Paris attacks: Jewish terror victims remembered The mother of Hattab is comforted during his funeral procession. He was the son of the chief rabbi of Tunis , Tunisia, JSSNews reported. Hattab will be buried in Jerusalem with the other victims. Hide Caption 3 of 8 Photos: Paris attacks: Jewish terror victims remembered Mourners wearing t-shirts bearing the picture of a victim arrive at Givat Shaul cemetery in Jerusalem.

Hide Caption 4 of 8 Photos: Paris attacks: Jewish terror victims remembered The body of one of the victims is taken out of an ambulance and carried into the cemetery. Hide Caption 5 of 8 Photos: Paris attacks: Jewish terror victims remembered French Minister of Ecologie Segolene Royal (dressed in blue) joins mourners in Jerusalem. Hide Caption 6 of 8 Photos: Paris attacks: Jewish terror victims remembered An Israeli man wrapped in a national flag joins family members and other mourners at the funeral. Hide Caption 7 of 8 Photos: Paris attacks: Jewish terror victims remembered The coffins of the four victims arrive at Ben Gurion airport on the morning of January 13 in Tel Aviv. Hide Caption 8 of 8

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.

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