Dr Imran Farooq widow makes plea to find his killers
The widow of an exiled Pakistani politician murdered outside his north London home has urged anyone who knows who his killers are to come forward.
Dr Imran Farooq, 50, a senior member of the MQM party who has been in London since 1999, was stabbed in Green Lane, Edgware, last Thursday.
His wife Shumaila Imran said his murder had "devastated me and left our family in a state of shock and disbelief".
The inquiry is being led by Scotland Yard's counter-terrorism unit.
Officers are working on the assumption that Mr Farooq's murder was politically motivated.
Speaking at a press conference at Scotland Yard, his wife said: "Imran was a dedicated family man, a loving father and a loving husband.
"Someone somewhere knows something about my husband's murder.
"It does not matter how insignificant this information may seem to you, it could be absolutely vital to the police investigation."
Det Ch Supt Neil Basu said police were keeping an open mind about the motive.
He said the "murder had shocked Edgware's Pakistani community".
Officers will return to the scene on Thursday night to speak to motorists and other potential witnesses.
Police have also published thousands of appeal posters and leaflets in Urdu and Gujarati.
Raza Haroon, a member of the MQM central co-ordination committee, said Mr Farooq had sought asylum in the UK as he was "under threat".
Following the killing, the security of other political figures from Pakistan living in London is now being reviewed.
The MQM (Muttahida Qaumi Movement) had declared a 10-day mourning period and analysts believe Imran Farooq's murder is linked to the re-emergence of political violence in Karachi.