conversion to Islam while in prison, after which he changed his name to Khalid Masood. Police said he also used several other aliases, including Khalid Choudry. Masood was born in Kent and detectives believe he was most recently living in the West Midlands. Masood was reported to have been an English teacher or tutor in Saudi Arabia sometime between 2005 and 2009. Then he returned to the United Kingdom and worked as a teacher of English as a second language in Luton.