This is more than a bit odd: Security guard tells of scene as Reading triple-murder suspect Khairi Saadallah was arrested | Daily Mail Online
The witness to the arrest seems to be the same person KS was arrested for assaulting last year, as per my link in post no. 30. (Name and employer the same.)
The bizarre coincidence is confirmed in this report: Sainsbury's guard recognised blood-soaked 'terrorist' 1yr after bottle attack
Incidentally, the photo of KS with cat in the Mail piece shows a lot of scarring on his arms that look like past instances of self harm to me.