The incidents in Romford and Wembley in the last week have left their local communities shocked.
There is no indication that the incidents are linked, and these are only the incidents that Newsquest London is aware of.
Last weekend, Zahwa Salah Mukhtar was found fatally wounded in an attack in Chadwell Heath Lane around 5.30am on August 16.
The “dearly loved” 27-year-old had been out with friends in Hackney earlier that day, but was pronounced dead hours later.
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A 35-year-old man has been arrested on suspicion of murder, and a 21-year-old and 22-year-old were arrested on suspicion of assisting an offender.
A 35-year-old man was arrested the next day on suspicion of assisting an offender.
All four men remain in police custody.
Only three days later on August 19, a man was stabbed to death in Wembley.
Shazad Khan, 41, was found injured in Monks Park around 6.10pm and died soon after.
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The father of one was a well-known ice cream man in the area, recognisable by his van’s large teddy bear.
In both incidents, friends and the broader community have been left shaken with reassurance being given by local police chiefs.
Zahwa’s family described “a kind and loving person with high aspirations in life” whose “presence brought warmth to those around her”.
They added: “Zahwa’s tragic loss has left us heartbroken, and she will be truly missed by all who knew and loved her.
“Her memory will live on in our hearts forever.”
Officers leading the investigations have described the incidents as “rightly causing concern” and “deeply affecting” the local communities.
But they emphasise in both instances that there is no threat to the wider public.
Anyone with information on the death ofZahwa is asked to contact police by calling 101 or online, quoting CAD 1625/16AUG.
Those with information on the death of Shazad are asked to call the Met via 101, or online, quoting 6174/19AUG.
Alternatively, people can contact the independent charity Crimestoppers anonymously on 0800 555 111.
