The convicted terrorist behind the Streatham attack was shot dead within 60 seconds of launching a violent knife spree, Met Police have said.
Sudesh Amman, 20, stabbed two people in Streatham High Road while wearing a fake bomb vest on Sunday at 2pm.
In a statement on Monday night, the Met said: “The time from him entering the shop to beginning his attack outside was approximately 60 seconds.
“Police officers responded, fatally shooting him within approximately 60 seconds of him beginning to attack people."
Armed officers, who were part of a proactive counter-terrorism surveillance operation relating to Amman, were following him as he left an address in the Streatham area at shortly after 1.20pm.
The attacker then made his way on foot into a shop on Streatham High Road shortly before 2pm.
Police belive he then stole a knife from a shop and was pursued by a member of staff.
As he ran from the premisses, he removed packaging from the knife, and once outside attacked two members of public.
Police fatally shot him and then called in specialist explosive experts after spotting a possible suicide vest on Amman.
"Detectives from the Met’s Counter Terrorism Command continue to carry out fast-time enquiries into the circumstances of the attack," a spokesman said.
"We have identified around 50 witnesses from whom we are gathering statements, and we have recovered and are trawling hours of CCTV footage."
The force added it was cooperating with the Independent Office for Police Conduct, which investigates police shootings.
