Don't worry. It's not terrorism. Just one of those outbreaks of Muslim mental illness that involves them carrying out massacres in Europe.
An American woman in her 60s has been killed after being repeatedly stabbed in the back by a knifeman in a central London rampage as police rowed back on terrorism as a potential motive and said the attack was probably triggered by mental health issues.
The US citizen was knifed by the "large man" - who was reportedly wearing black shorts and a white t-shirt - as he silently and indiscriminately attacked pedestrians in Russell Square on Wednesday night.
She was helped by a family of Spanish tourists as she lay slumped against railings after being targeted by the knifeman, who witnesses said did not say a word as he also stabbed a man in his 40s in the chest and a woman in her 20s in the arm.
A 19-year-old man has been arrested on suspicion of attempted murder, having received treatment in hospital under armed guard after a Taser was discharged as he was detained by police shortly after 10.30pm.
The suspect is a Norwegian national of Somalian origin, but no evidence has been found of radicalisation, Scotland Yard's head of counter-terrorism Assistant Commissioner Mark Rowley said.
Police had earlier said they were keeping an open mind over the motive behind the attack - which took place in a popular central London tourist area close to the scene of the July 7 London bus bombing in 2005 - and said terrorism was "one line of inquiry that we should explore".
An open mind on every possibility that does not involve terrorism. Particularly Islamic terrorism.
Mr Rowley said that so far no evidence has been found of radicalisation that would suggest the man in custody was "in any way motivated by terrorism".
Aside from him being a Muslim randomly stabbing people near the scene of a Muslim terror attack around the same time as a bunch of other Muslim terrorists are killing Europeans in response to orders from ISIS.
Aside from that.
"At this time, we believe this was a spontaneous attack and that the victims were selected at random."
It was also revealed in the statement on Thursday afternoon that the woman killed in the attack was American. Those injured are Australian, American, Israeli and British.
Randomly non-Muslim.