Lifted from Wikipdia so might not be totally accurate ..
Begum was born to Bangladeshi parents in Tower Hamlets, East London, England in 1999. She was largely brought up by her mother Shahnaz Begum until 2007, when her father, Mohammad Uddin, moved to Britain. She grew up in a two-bedroom council flat in Bethnal Green. Begum is her parents' only child.
In Autumn 2014, while Begum was living with her grandmother in east London,Begum's father remarried. Begum's friend, Kadiza Sultana, accompanied her to the wedding.
Begum lived with her uncle Shamim Miah, 38, a former religious scholar, and her mother Shahnaz Begum – until her death from lung cancer aged 33 in 2014, grandmother, Jahanara, 66, in a terraced house a few minutes walk from Bethnal Green Academy in East London. She was raised by her uncle Shamim Miah.
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Begum's father was distraught when she failed to come home after an overnight stay at her grandmother's house. When he rang Begum's mobile phone and heard a foreign dial tone, he called Scotland Yard to report her gone. He said: "The police told me it's possible Sharmeena has joined Islamic State." Her father said Kadiza Sultana, Shamima Begum and Amira Abase came to visit him at his home in east London two days after Begum disappeared and told him that sometimes she spoke to a girl privately.
Begum's father believes Begum was groomed by two young women extremists who targeted her via social media on her phone who took her to the airport and made sure she caught the flight to Turkey. He said he warned police and his daughter's school to monitor her three friends
Scotland Yard has been criticised for failing to speak directly to the parents of Kadiza, Shamima and Amira following the disappearance of their friend. Police wrote letters to the three girls' parents in February but rather than delivering the letters directly instead gave them to the girls to deliver. The families found the letters after the three girls had left. They had not been warned that Begum had gone to Syria in December. A Metropolitan Police Service spokesman said: "During the meeting, in the presence of the deputy head, there was no indication that any of the girls spoken to were in any way vulnerable or indeed radicalised. There was no indication that any of the girls were at risk of travelling to Syria."
Police subsequently told Begum's father that two women had encouraged Begum to join the Islamic State in Iraq and the Levant and taken her to Gatwick airport for a flight to Istanbul. She is then thought to have made her way overland through Turkey to the Syrian border. Scotland Yard have said police received reports that a 15-year-old girl from Bethnal Green Academy left the UK for Syria on 6 December, and three days later officers interviewed seven of her friends at the school, including Shamima Begum, Kadiza Sultana and Amira Abase, about her disappearance. Scotland Yard has said that two women, aged 20 and 21, were arrested in north London on 19 February over Begum's disappearance. The suspects were held on suspicion of an offence under the Child Abduction Act 1984 before being bailed until next month.
Initially Islamic leaders and some of their family members claimed the Internet was used to groom Begum and her three friends.[2] However, according to a report by Omar Wahid, in August 2015 Begum was indoctrinated into radical thinking at East London Mosque in Whitechapel by a women's group from the Islamic Forum of Europe (IFE). She then allegedly persuaded her three friends to join her at the meetings at the mosque. However, the mosque authorities denied any links with Islamic extremists.