Murderer Seifeddine Rezgui was at home on Thursday talking with his uncle about his life and studies.

‘Everything was perfectly normal,’ his uncle Ali Bin Muhammad Rezgui said. But barely 24 hours later his nephew had massacred dozens of Western tourists in cold blood.

Speaking from the family home in Gaafour, a poor area of Tunisia’s Saliana province, the distraught 70-year-old said: ‘He was with me on Thursday. We sat in the garden and he was perfectly normal.

‘He left here at 12pm and we had no idea what he was planning. We talked about his life and studies. That was the last time I saw him.

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Face of a killer: This is the man ISIS claim carry out the attack, named by them as Abu Yahya Al Qayrawani

Predator: Assault rifle in hand, the gunman roams the streets of the popular holiday resort town Sousse where he and possible accomplices killed at least 38 people

Response: The corpse of the gunman, who is believed to be a 23-year-old Seifeddine Rezgui, was later pictured on the side of the road. It is thought this could be the same man ISIS accounts pictured

'He was a sweet boy when he was younger. He was a breakdancer and loved football. He should have had a long, happy life.’

Last night, a Tunisian Interior Ministry source said that while Rezgui did not have a criminal record, he was known to authorities for ‘low level radicalism’ and was once stopped by police for smoking cannabis.

The source confirmed that Rezgui was an active member of a radical group called Islamic Youth and would go to mosques controlled by radical preachers.

By the time he launched his killing spree in Sousse, Rezgui was said to be working with IS, which yesterday posted a picture of him with two assault rifles either side of him, on its website.

Using Rezgui’s jihadi name, Abu Yahya al-Qayrawani, it described him as ‘Our brother, the soldier of the Caliphate’.

ISIS extremists have claimed the massacre which left 38 dead was an 'attack upon the nests of fornication, vice and disbelief in God' - as they warned 'worse is to follow'.

The threat accompanied a picture of the man ISIS claim was behind the assault on innocent holidaymakers, who they name as Abu Yahya Qayrawani.

It is thought this is jihadi name of the killer fatally shot by authorities after Friday's attack, a 23-year-old aviation student called Seifeddine Rezgui, who was armed with an assault rifle and grenades.

Bodies lie on a beach in Sousse after gunmen opened fire on tourists at two hotels, killing at least 38

Killed: A 16-year-old British boy saw his grandmother and parents gunned down by the men who killed 38 (one pictured)

It has been reported that the attack happened on the private beach of the Royal Kenz Hotel, which is situated 400 metres away

The statement accompanying the picture added: 'Our brother, the soldier of the Caliphate, Abu Yahya al Qayrawani, reached his target the Imperial hotel despite the security measures.'

Sky report the statement goes on to say he had attacked a 'bordel' and killed 40 'infidels'.

It is yet to be confirmed whether this definitely is the same man who murdered 38 tourists staying at a hotel in Sousse, Tunisia.

Tunisian Prime Minister Habib Essid said Rezgui was not previously known by authorities, and came from the town of Gaafour in the governorate of Siliana and had been a student at Kairouan university.

A second gunman is reported to have escaped, but details remain unclear.

Eyewitness accounts say Rezgui was was seen laughing and joking among the midday bathers and sunseekers, looking like any other tourist.

But it was claimed he was carefully selecting the victims he would murder with a Kalashnikov hidden in his parasol.

Images purporting to show the inside of killer Seifeddine Rezgui's apartment have emerged. The property appears to be filthy, while this image shows all he kept in the fridge was a few chili peppers

Rubbish litters the apartment, while on the dinner table appears to be a knife and fork, left there before he left to commit his atrocities

The British were his prime targets on the crowded Tunisian beachfront at El Kantaoui near Sousse.

But Germans, Belgians and Tunisians were also among his 38 victims – with 36 seriously wounded.

'He was laughing and joking around, like a normal guy,' said one witness. 'He was choosing who to shoot. Some people, he was saying to them 'you go away'. He was choosing tourists, British, French.'

Tonight images have also emerged purporting to show the inside of Rezgui's apartment.

The dirty flat is covered with rubbish, with a knife and fork still on the dinner table which were left there as he went out to commit his atrocities.