( CNN ) One of the brothers who committed January 's massacre at the French satirical magazine Charlie Hebdo texted the man who would later kill hostages at a Paris kosher supermarket a little more than an hour before the first attack , French newspaper Le Monde reported Tuesday . Le Monde also reported that the January 7 Charlie Hebdo massacre nearly was canceled the day before , because one of the attackers was sick . The newspaper cited unnamed French investigative sources for both accounts . Le Monde reported that it did n't know the message 's content , but said it helps to show the Charlie Hebdo attacks by Cherif and Said Kouachi and supermarket attack by Amedy Coulibaly were coordinated -- something that Coulibaly himself purportedly admitted to a TV reporter before police killed him . Cherif Kouachi sent a text message to Coulibaly at 10:19 a.m. on January 7 , Le Monde reported . That is a little more than an hour before the Kouachi brothers assaulted the magazine offices in Paris , killing 12 people and injuring 11 . Coulibaly , who authorities say was a known associate of the Kouachi brothers , shot a policewoman to death in a Paris suburb on January 8 , and then took hostages -- killing four -- at a kosher supermarket in Paris on January 9 before police shot and killed him in a raid on the store . The Kouachi brothers were killed the same day , as police moved in to end a separate siege north of Paris . The January 7 text message was sent from Cherif Kouachi 's phone on the outskirts of Paris to one of 13 phones that Coulibaly was using , according to Le Monde , citing its investigative sources . Le Monde said investigators determined that Coulibaly 's phone was bought specifically to communicate with the Kouachi brothers , and that only six messages had been sent from the device . Evidence from the phone shows that Coulibaly and Cherif Kouachi probably met in person sometime before 1 a.m. on January 7 , Le Monde reported . The investigative sources told Le Monde that the Charlie Hebdo attack almost was called off on January 6 , because Said Kouachi had come down with the stomach flu . Al Qaeda 's Yemen affiliate , al Qaeda in the Arabian Peninsula , has claimed to be behind the Charlie Hebdo massacre . Coulibaly , meanwhile , proclaimed his allegiance to the Islamic State in Iraq and Syria , or ISIS . Coulibaly , during the supermarket attack , told a journalist with CNN affiliate BFMTV by phone that he had synchronized his attacks with the Kouachi brothers , BFMTV reported . Cherif and Said Kouachi : Their path to terror .
Newspaper : Cherif Kouachi texted Amedy Coulibaly an hour before the Charlie Hebdo attack . Score: 6