The fatal stabbing of Tory MP Sir David Amess has a potential link to Islamist extremism, say detectives.
The singer's daughter says MP Sir David Amess was the "driving force" behind the memorial's campaign.
Her family have told the BBC that they fear she could be returned to jail at any time.
Mr Hancock's appointment to the UN's economic commission for Africa was announced earlier this week.
Hazrat Wali was found with knife injuries and died a short time later.