Residents on a recently redeveloped Acton estate have reportedly launched a petition to have the Bollo Brook youth centre moved and the space turned into a coffee shop or library or laundry.
Carter Bagshaw, who is 17 months old, poured soil on the grave of his father, who was stabbed to death in July.
Officers were called to Welbeck Road, Barnet, on Tuesday following reports of a fight.
Four police officers were injured and three people were arrested after the violence at Westfield in Stratford, east London.
Police have launched a murder investigation after a man was killed in Kentish Town, north-west London, on Monday evening.
The government consultation follows a spate of violent crime across Britain since the beginning of the year.
'Luther' actor Idris Elba has urged 'gangs to put down the Knifes' in a passionate video addressing London's escalating levels of crime.
Home Secretary Sajid Javid made the comments following a meeting with senior police chiefs from forces most affected by violent crime.
Cressida Dick said she disagreed with the prime minister's comments on policing and knife crime.
Lord Bernard Hogan-Howe also called for the introduction of a "knife crime csar" to tackle the problem.
Scotland Yard has launched a murder inquiry after the 19-year-old died after being shot and stabbed in Wood Green, north London.
A report from the Office for National Statistics (ONS) showed the number of fatal stabbings in England and Wales has hit the highest level since records started more than 70 years ago.
Jaden Moodie, 14, was rammed off a moped and stabbed to death in east London last week.
The victim was knocked off his moped before the killers got out of their car and knifed him to death.