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The truck driver responsible for killing 84 people on Nice's waterfront watched Isis beheadings online and dated a 73-year-old man, it has emerged.
Mohamed Lahouaiyej Bouhlel , 31, was shot dead in the cabin of the white lorry he had driven into the packed crowds celebrating Bastille Day.
French media have reported that Bouhlel's mobile phone records show he used dating websites to meet men and women - including a 73-year-old man.
The device was picked up by police officers at the scene from the lorry's cabin after he was shot dead.
Police say the phone is proving more important to the investigation than the seven suspects in custody for their links to Bouhlel.
Investigators could not confirm the Tunisian-native was approached by an Algerian Isis recruiter, stating the case was ongoing.
Who was the Nice attacker? The driver's uncle, Sadok Bouhlel, has told reporters that given Bouhlel's family problems - he was estranged from his wife and three children — the Algerian recruiter "found in Mohamed an easy prey for recruitment."
The uncle said he learned about the Algerian recruiter from extended family members who live in Nice.
In pictures: Bastille Day Nice attackShow all 30 1 /30In pictures: Bastille Day Nice attack In pictures: Bastille Day Nice attack A man reacts near bouquets of flowers near the scene where a truck ran into a crowd at high speed killing scores and injuring more who were celebrating the Bastille Day national holiday in Nice
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In pictures: Bastille Day Nice attack A woman arrives with a toy and a bouquet of flowers as people pay tribute near the scene where a truck ran into a crowd in Nice
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In pictures: Bastille Day Nice attack A woman reacts as she places flowers in front of the memorial set on the 'Promenade des Anglais' where the truck crashed into the crowd during the Bastille Day celebrations in Nice
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In pictures: Bastille Day Nice attack People gather to view the floral tributes near the site of the truck attack in the French resort city of Nice
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In pictures: Bastille Day Nice attack A man reacts near bouquets of flowers as people pay tribute near the scene where a truck ran into a crowd at high speed killing scores and injuring more who were celebrating the Bastille Day national holiday, in Nice
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In pictures: Bastille Day Nice attack Floral tributes are laid out near the site of the truck attack in the French resort city of Nice
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In pictures: Bastille Day Nice attack A child's toy is placed among the floral tributes laid out near the site of the truck attack in the French resort city of Nice
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In pictures: Bastille Day Nice attack Investigators continue at the scene near the heavy truck that ran into a crowd at high speed killing scores who were celebrating the Bastille Day in Nice
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In pictures: Bastille Day Nice attack Crime scene investigators work on the 'Promenade des Anglais' after the truck crashed into the crowd during the Bastille Day celebrations in Nice
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In pictures: Bastille Day Nice attack A forensic expert examines dead bodies covered with a blue sheet on the Promenade des Anglais seafront in the French Riviera city of Nice
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In pictures: Bastille Day Nice attack A forensic expert evacuates a dead body on the Promenade des Anglais seafront in the French Riviera city of Nice, after a gunman smashed a truck into a crowd of revellers celebrating Bastille Day
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In pictures: Bastille Day Nice attack A man reacts as he sits near a French flag along the beachfront the day after a truck ran into a crowd at high speed killing scores celebrating the Bastille Day in Nice
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In pictures: Bastille Day Nice attack Discarded items are left on the beach, not far from the site of the truck attack in the French resort city of Nice
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In pictures: Bastille Day Nice attack Bullet holes in the windscreen of the lorry that was driven into the crowd at high speed
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In pictures: Bastille Day Nice attack A man walks through debris on the street in Nice, France, the morning after a lorry ran into a crowd, killing at least 84 and injuring 50
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In pictures: Bastille Day Nice attack Rescue workers help an injured woman to get in a ambulance
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In pictures: Bastille Day Nice attack Authorities investigate a truck after it plowed through Bastille Day revelers in the French resort city of Nice, France
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In pictures: Bastille Day Nice attack Celebrations of Bastille Day were targeted by the lorry driver
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In pictures: Bastille Day Nice attack People cross the street with their hands on thier heads as a French soldier secures the area after at least 84 people were killed along the Promenade des Anglais in Nice
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In pictures: Bastille Day Nice attack A paramedic attends one of the dozens of people injured in the Nice Bastille Day attack
In pictures: Bastille Day Nice attack Soldiers march on street where the lorry crashed into the crowd
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In pictures: Bastille Day Nice attack A man sits next to a body seen on the ground after at least 84 people were killed in Nice, when a truck ran into a crowd celebrating the Bastille Day national holiday
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In pictures: Bastille Day Nice attack Bodies are seen on the ground after at least 84 people were killed in Nice, when a truck ran into a crowd celebrating the Bastille Day national holiday
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In pictures: Bastille Day Nice attack Children were among the 84 killed in the atrocity, with around 50 more hospitalised
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In pictures: Bastille Day Nice attack French Interior Minister Bernard Cazeneuve (2nd L) speaks to the media in Nice
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In pictures: Bastille Day Nice attack A man walks with his hands up as police officers carry out checks on people in the centre of French Riviera town of Nice
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In pictures: Bastille Day Nice attack With injured people laying in the street police and onlookers react near to a truck in Nice
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In pictures: Bastille Day Nice attack Police officers, firefighters and rescue workers are seen at the site of the attack
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In pictures: Bastille Day Nice attack Police officers speak with a soldier after a truck that ploughed into a crowd leaving a fireworks display in the French Riviera town of Nice
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In pictures: Bastille Day Nice attack Police shine a light into the cab as they approach the driver's cab of a truck, in Nice
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Bouhlel's rapid radicalisation has puzzled investigators as friends and family said he had not been an observant Muslim in the past.
Despite Isis having claimed the attack , Interior Minister Bernard Cazeneuve told RTL radio Bouhlel may have been motivated by IS messages but not necessarily coordinating with a larger network.
Sadok Bouhlel, a 69-year-old retired teacher, in the driver's hometown of Msaken, Tunisia said: "Mohamed didn't pray, didn't go to the mosque and ate pork."
Sadok is devastated by his nephew's act, and doesn't want him buried in Msaken, saying: "He made more than 80 families grieve, and stained the reputation of our town and our country."
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