Khalid Masood, 52, the man responsible for the London terror attack on Wednesday, was an Islam convert who also stayed in prison for various offenses. A community group has raised the alarm that people are increasingly being "radicalized" in UK 's prisons. The group is urgently asking the government to do something about it.
Intelligence officials are now investigating whether Masood was groomed and influenced in jail.
Research from the Henry Jackson Society says Muslim converts are four times more likely to commit terrorism offenses compared to those born into the faith.