The male victim, believed to be 18, was found with stab wounds after the incident in York Way, Islington.
Mike Graham has said that the UK needs to admit that the country has a problem with knife possession, after 69 people were detained by police on suspicion of possession of an offensive weapon at Notting Hill Carnival.
Police are urgently trying to arrest a male suspect after the women, aged 49 and 22, were killed in Solihull on Monday.
Garvin Snell and his son have gone viral on social media after posting the clip.
Four teenagers were stabbed in Camberwell on Thursday evening
Armed officers were sent to the Hilton on Deansgate in the city centre after police were flagged down by the victim
Ishmael Lee South joined the talkRADIO breakfast show to talk about the recent rise in crime figures published on Thursday.
Police registered 40,147 offences involving a knife or sharp instrument in the year to March, a 16% increase on 2016/17.
The youngster was found after emergency services were called to Belle Vale Road at around 9pm on Tuesday, Merseyside Police said.
Five gang members who made drill music videos glorifying violence have been locked up after being caught with baseball bats and machetes on their way to attack rivals.
Two more stabbings took place over the weekend, with the London incident bringing the total number of murders in the capital to 74 this year
Five gang members who were "caught red-handed" with machetes and baseball bats after making drill rap videos glorifying violence are facing jail.
The 16-year-old male was arrested at his home in Wolverhampton on Wednesday and was due to be questioned later
Jermaine Lawlor is the founder of Voice for Youth Against Violence, an organisation that helps young people out of crime, and a former gang member himself.
Police were called at 2.30am on Friday by paramedics to reports of an unresponsive woman inside a residential address in Brent.
A night of violence in London left four men in critical conditions after one was shot and three others stabbed. One arrest has been made
Sajid Javid also vowed to prioritise police spending as he offered an olive branch to rank-and-file officers following years of sniping over budget cuts and staffing reductions.
The police have reported several cases of violent crime across the capital after bank holiday weekend bloodshed.
A former gang member from Tottenham has spoken out about the recent rise in violent crime.
Seven separate knife and gun crimes over the Bank Holiday weekend are the latest in a number of violent attacks in London and elsewhere
Police have launched a murder investigation after a man in his thirties died at the scene
It is thought that the man is a member of the Sun Yee On triad, a Chinese organised crime syndicate
Moore sentenced to 12 years' imprisonment with a further three years on licence
The police have announced a crackdown on people dressing up on the streets in an attempt to scare the public
A police officer at Bishop International Airport was stabbed in the neck in what has been described as a terror attack, he is said to be in a stable condition
Cave has campaigned tirelessly against knife crime since her own teenage son was murdered in 2003