ISIS priest killer’s sister is also a terror threat and may attack cops or civilians, her father warns
Franck Petitjean, who formally adopted ISIS butcher Abdelmalik Petitjean, fears his teenage daughter Laura is so angry she may go on a similar rampage
THE half-sister of an ISIS fanatic who slaughtered a Catholic priest is 'capable of taking revenge' against police or civilians, her father has warned.
Franck Petitjean remains in a ‘state of shock’ after 19-year-old Abdelmalik Petitjean, whom he formally adopted in 1997, carried out the barbaric attack in France a week ago.
Now he fears his teenage daughter, Laura, is so angry she may want to hurt innocent people too.
Mr Petitjean, who lives in the south west city of Bordeaux, said: "She told me that God alone frightened her.
Fearing she may have been radicalised as well, he added: "She is able to take revenge on an innocent, a police officer, a woman, anyone."
Mr Petitjean made his shocking claims to French media outlets soon after Laura was released from custody without charge.
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She had been arrested along with a number of other family members and friends of Petitjean soon after he murdered Father Jacques Hamel in Saint-Etienne-du-Rouvray, Normandy, last Tuesday.
Abdelmalik and his accomplice, Adel Kermiche, also 19, were gunned down by police commandos as they ran out of the church once Father Jacques was dead.
Mr Petitjean, who is not thought to be a Muslim, said his adopted son had hidden his radicalisation extremely well and he feared that Laura might be doing exactly the same thing.
He added: "I was in contact with him by phone at the beginning of July. He was with his cousin in Nancy.
"He said he wanted to come on holiday to Bordeaux in August. He’d passed his baccalaureate, he ought to have got his driving licence, to work in distribution.
"He had a future, he ought to have had children. He went to the mosque and had observed Ramadan from a young age.
"I was proud of him because he was a true Muslim, but he fell in with a bad crowd who got into his head."
Mr Petitjean said radicalisation probably started soon after Abdelmalik’s parents divorced in 2011.
"Malik was adorable. Credulous. Daesh got into his head, invaded his brain," said Mr Petitjean.
"Three and a half months ago, my ex wife called me and said she was called by an Imam in Aix-les-Bains, with Malik.
"She told me he was hanging out with the bearded ones. When I wanted to look after my son, he told me that I was racist.
"In three months, he’d allowed them to get into his brain. Nobody in his immediate family or circle of friends saw anything."
The ‘Nancy cousin’ is Farid Khelil, 30, who has been placed under formal criminal investigation for a range of terrorist-related charges including murder and kidnap.
Khelil not only put his cousin up in Heillecourt, a suburb of Nancy, before the savage attack, but knew something violent was about to happen, prosecutors allege.
Khelil, who has just one previous conviction for a minor road traffic offence in 2009, turned himself into police soon after Petitjean and Kermiche struck.
All are alleged to have been in contact each on Telegram, the encrypted message application which is particularly popular with terrorists.
Kermiche had even boasted about his plans on the service, saying: "You take a knife, you go to church, you create carnage, bam!"
Police had also received a warning that Petitjean was going to strike on the Friday before the attack, although it only contained a picture of him, rather than his full name.
The killers were both on so called S-file terrorist watch lists after they were caught running away to Turkey to try and join the ISIS caliphate in Syria.
Petitjean lived more than 400 miles away from Saint-Etienne-du-Rouvray, with his mother in the Alpine spa town of Aix-les-Bains.
When he left home on Monday, Petitjean told his mother, Yamina Boukessoula, that "I’m going to see my cousin in Nancy".