Police say Widdecombe killing was targeted but motive remains unclearpublished at 19:51 BST
Daniel De Simone
Reporting from Scotland Yard
Image source, PA MediaHead of Counter Terrorism Policing Assistant Commissioner Laurence Taylor says Ann Widdecombe died in a "brutal" and "targeted attack"
Police today said the murder and counter-terrorism investigations are running in "parallel".
This can potentially mean the suspect eventually faces terrorism offences in addition to a murder charge.
But that is not inevitable, and a murder can be prosecuted as having a terrorist or political motive without any other charges alongside it. That has happened in other cases.
For now, all police will say they are sure of is that Ann Widdecombe was specifically targeted. They won’t be drawn into commenting on the motive.
When various possible motives were put to them, they declined to comment, saying nothing is being ruled out.
The fact the suspect has been arrested under the Terrorism Act means there is further time to hold him before a charging decision.
This will allow officers to further examine digital devices and question witnesses, as they seek to establish what lies behind such a brutal attack.
We're ending our live coverage now. You can read more on the investigation in our news story.












