The third London attacker has been named by Scotland Yard as a Moroccan-Italian man, Youssef Zaghba.
The 22-year-old, who had been living in east London, was not a subject of interest to either British police or MI5.
He is said to have had seasonal work at a London restaurant.
Italian newspaper Corriere Della Sera reported that he was born in Fez in January 1995 to a Moroccan father and an Italian mother.
The paper said his parents had lived in Morocco before splitting up.
His mother apparently then returned to Italy and lived in the Bologna area.
He was reportedly stopped at Bologna airport in March last year while trying to take a flight to Istanbul, before potentially travelling on to Syria.
He is said to have had one backpack with him, and a one-way ticket.
Zaghba apparently told his mother he was headed for Rome.
Scotland Yard has named the other two terrorists involved in the London Bridge attack as Khuram Shazad Butt and Rachid Redouane.
:: Khuram Butt
Butt was known to police and MI5 and Assistant Commissioner Mark Rowley said an investigation into him started in 2015. But with "no intelligence to suggest that this attack was being planned...the investigation had been prioritised accordingly".
Butt appeared in a Channel 4 documentary called The Jihadis Next Door last year.
He was once asked to leave a mosque in east London after "interrupting a Friday sermon".
In his neighbourhood, Butt was known as Abu Zaitun - or Abu for short.
The 27-year-old came to Britain as a child when his parents sought asylum from Pakistan - and he lived in a ground-floor flat in Barking.
Neighbours said he was a keen gym-goer and weightlifter, and was the father of a baby and a toddler.
One neighbour, Ken Chigbo, said Butt has asked him about hiring a van hours before the attack took place.
"He said to me, 'Oh, where did you get your van, Ken? How much is it, is it possible to get in automatic?' - all these specific questions about the van, which obviously now makes sense in my head," Mr Chigbo said.
"At the time I didn't think anything of it."
A neighbour who did not want to be named said Butt stared angrily whenever he saw women cycling on the estate. She described it as "sinister" and "sexist".
Another neighbour, Michael Membo, said they enjoyed discussing Arsenal and whether Arsene Wenger should remain manager.
Two young boys said he had given them sweets and £2 each in a nearby park last week. He told them they must be polite to their dads and respect their elders.
But a parent said she had confronted him and asked him not to speak to her children any more - fearful they were being radicalised.
An online CV shows that Butt obtained an NVQ in business administration in 2009, and a diploma in teaching English to adults in August 2016.
The CV lists two jobs: one he started in May at Transport for London, and another at a company called Auriga Holdings, which we believe to be a franchise for a local KFC restaurant.
:: Rachid Redouane
Redouane, 30, was born in July 1986. He claimed to be Moroccan and Libyan.
Scotland Yard says he also used the name Rachid Elkhdar, as well as a different date of birth which made him five years younger.
According to Sky sources, an Irish ID card was found on Redouane's body. Reports have said he lived in Rathmines, Dublin. It is believed he used Irish jurisdiction to get a European Union permit, allowing him to be in the UK.
Police in Ireland are investigating, with detectives trying to establish whether he travelled to Syria.
He is understood to have lived in the Rathmines area of Dublin for 18 months between 2014 and 2016. He was married to a Scottish wife.
He is not thought to have been on a watch list either in Britain or Ireland.
Sunawar Ali, the chairman of Dagenham Mosque where Redouane prayed, said he was "shocked" and felt "very sad". (Sky News)
