By Hannah Roberts In Brussels For Mailonline
Published: 11:13 EST, 18 November 2015 | Updated: 13:07 EST, 18 November 2015
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The mother of the baby faced jihadi who wanted to kill hundreds at the Stade de France warned her son was a 'ticking time bomb' in the weeks before he blew himself up.
Bilal Hadfi, 20, was one of three extremists who detonated their suicide vests outside the stadium on Friday night, beginning Paris' worst night of violence since the Second World War.
Hadfi was already known to terror police in Belgium, which had been the family's home country for a number of years.
Now his mother Fatima says she knew her son posed a serious threat before he fled to Syria in February.
Dangerous: Bilal was a ticking time bomb when he left his home in Belgium for Syria where he would join ISIS in February this year, mother Fatima revealed
Killer: Her statement, made just days before Hadfi detonated his suicide vest outside the Stade de France, took on a chilling new meaning after his murderous act on Friday night
Disappeared: His mother said she had not heard from him in three months at the start of November
'I had the impression that he was going to explode any day,' she told La Libre Belgique, as she recalled the boy who left for Syria earlier this year.
He had given up smoking and drinking about a month before, and was fasting two days a week - something which Fatima had originally welcomed.
The day he ran away, he came to his mother with 'red eyes' and took her in his arms.
'He knew he was going and would not be coming back,' she said.
Fatima found out shortly afterwards where he had gone, but revealed then that she did not tell the police, for fear it would make it difficult to return.
But it did not seem he would. In one phone call home, Hadfi told her: 'I'm afraid you will die and go to hell because you live in a country of kuffar (non-believers).'
Fatima said she had not heard from her son for three months in an interview with journalist Christophe Lamafalussy on November 11.
Infidels: Fatima revealed he would call his her to tell her he was worried about her living in the land of the 'infidels'. Pictured: An AK47 on his archived Facebook page
Normal teenager: When he stopped smoking and began fasting, shortly before he left for Syria. Fatima was happy. Pictured: Sunbathing with a friend in a picture from the archived Facebook page
Religious zeal: His Facebook page reveals a young man who was concerned with having fun with his 'little brothers' (pictured), but that all changed in the months before he left
Others have already revealed how Hadfi stopped listening to music, saying it was haram, or forbidden, in the weeks before he left.
The student had also become vocal in his support for Boko Haram, the Nigerian Islamist terror group.
But it was when he agreed with the Charlie Hebdo massacres which took place in January that his school teacher Sara Staccino really became worried, however.
'He said it was right what happened was because the magazine had insulted his religion,' she told Belgium's Radio One.
But her attempts to warn others and stage an intervention fell on deaf ears: a week later he left to join ISIS.
Hadfi's Facebook page reveal the young man, of Moroccan descent, had once been quite different, posting photos of guns, piles of cash and sunbathing topless.
The profile, which has now been archived, dates back to 2011. It has posts from the 2007 France riots - above the press photo of a group of hooded men stand a top a police car he writes 'F*** the police'.