Only one of the two men who stormed into the church in the northern town of Saint-Etienne-du-Rouvray during morning Mass Tuesday and slit the 86-year-old priest's throat at the altar, has been officially identified.
On Wednesday, the IS-affiliated Amaq news agency released a video allegedly showing the church attackers sitting on a floor, clasping hands, and pledging allegiance to the group.
In it, Kermiche identifies himself by the nom de guerre Abu Jaleel al-Hanafi, and says Petit Jean is called Ibn Omar.
At the time of Tuesday's attack, Kermiche was awaiting trial.
According to the justice ministry, there are just 13 terrorism suspects and people convicted of terrorist links wearing such tags.
"We were saying that is not good".
"The people of Germany are filled with grief over the fact that France has once again been the victim of inhuman violence", Merkel said. "He spoke with words that didn't belong to him. It's a horror", she told BFM television. "And I invite all non-believers to unite with this cry", Lebrun wrote in a statement from Krakow, Poland.
He was detained until March 18 when he was released under house arrest with an electronic monitoring tag.
She said the attackers recorded themselves. The attacker was associated with Maxime Hauchard, a French jihadi who appeared in an ISIS beheading video in 2014, the source said.
Saint-Etienne-du-Rouvray Mayor Hubert Wulfranc, center left, delivers his speech to the media in front of city hall a day after an hostage taking left a priest dead in Saint-Etienne-du-Rouvray, Normandy, France, Wednesday, July 27, 2016.
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Kermiche never made it that far.
The 19-year-old was forced to wear an electronic monitoring tag after he traveled overseas to try to fight in Syria.
"We tried to bring him to his senses, but every time we did it he was bringing in a verse from the Quran. He was inventing things", the young man said. Six survivors, who were hiding in the supermarket, accused the channel of endangering their lives by revealing the location of their hideout live on air.
The Kermiche family home was empty Wednesday, and Geslin said the parents were right to leave, given the tumult. For French President Francois Hollande and his beleaguered Socialist government, coming on the heels of the recent Nice attack, the Paris Bataclan massacre and the earlier Charlie Hebdo assault, the new attack couldn't be worse.
He said religious leaders "deeply desire that our places of worship are the subject of greater [security] focus, a sustained focus", as even "the most humble place of worship" can be targeted.
"Some might think it is war of religion".
Adding that the country was "waging war", he urged his compatriots to stay united and not turn against each other.
The Archbishop of Paris, Cardinal Andre Vingt-Trois, told journalists after the meeting at the Elysee Palace: "We can not allow ourselves to be dragged into the politics of Daesh (ISIS), which wants to set the children of the same family against each other". He did not elaborate.
"What has enabled France to break up a large number of terrorist networks is keeping these people under "S file" surveillance, which allows intelligence services to work without these individuals being aware", he said on Europe 1 radio.
He also said more of the country's 10,000-strong Operation Sentinel anti-terror forces would be deployed to areas outside Paris following the lorry attack in Nice and the killing in Normandy.