A construction student was stabbed to death on a London street in one of three killings in just 24 hours - as the murder toll in the capital rises to 59 this year.
Cheyon Evans, 18, was attacked in Tooting, south west London, at 4.42pm on Friday.
Mohammed Nadir Dafallah, 18, and a 17-year-old boy have been charged with murder after the attack, Scotland Yard said.
A witness told the Sun: 'I haven't seen that much blood in my life. I kept trying to tell him "stay with me".
'Then he just passed away in front of me.'
Witnesses told the Times that he was set upon by a gang of teenagers and was stabbed up to 17 times.
Just 12 minutes after Cheyon died, a 19-year-old man was shot to death in Plumstead, south east London.
Cheyon Evans, 18, was stabbed to death in Tooting, south west London, on Friday. Witnesses said the construction student was set upon by a gang of teenagers and was stabbed up to 17 times
Medical equipment was photographed yesterday at the scene of the attack on Cheyon Evans in Deeside Road, Wandsworth, where police continue to investigate
Police have arrested six men, aged between 16 and 19, on suspicion of murder in the wake of the shocking daylight attack in Tooting
Police and forensics officers at the scene in Tower Hamlets, east London, after a man suffered stab injuries on Saturday afternoon and was pronounced dead
Police have arrested four people over the stabbing in Tower Hamlets, three men aged 17, 16 and 16, and a 17-year-old girl
Flowers were left at the scene of Cheyon's stabbing on Saturday morning following the murder
A man in his 30s died after being stabbed just before 2pm on Saturday in Poplar, east London.
Three men were also found stabbed and slashed in Clapham around 3am on Saturday, but managed to escape with their lives.
The condition of two of the men is unknown, but a third man has been reported as having non-life threatening injuries.
Some 90 minutes after the attack in Poplar, a man in his 40s was stabbed in the chest in Edmonton, north London.
The victim suffered a single stab wound to the chest and was airlifted to hospital where he is in a critical but stable condition.
The incident happened at 3.30pm in North Square, Edmonton, north London. So far there have not been any arrests.
Crime officers were seen searching for evidence in Plumstead, south east London, following the fatal shooting on Friday
An air ambulance in attendance after a man in his 30s was stabbed in Tower Hamlets, east London. He died 40 minutes after being attacked
A man in his 40s was stabbed and critically injured in an attack in Edmonton, north London, at 3.30pm on Saturday. The victim was taken to hospital where he is being treated for his injuries
Three men and a woman have been arrested in connection with Friday's Plumstead murder
The father of murdered schoolboy Damilola Taylor has said young people still have not learned lessons from his son's death.
Speaking at a conference in central London on gun and knife crime, Mr Taylor said: 'Young people have taken life as if it's something to play with'.
'In our work in the past 15 years at the Damilola Taylor Trust, we have found that the problem that underpins the continuous surge in knife crime in the city of London is based on issues around family neglect.
Damilola Taylor was found bleeding to death in a stairwell near his home in Peckham, south London, in 2000
'The family issue has often contributed to young people being neglected from home as a result of a dysfunctional home.
'Secondly, part of the discussion that has been emphasised here is that the problem starts in schools as a result of the schools not understanding the background of these children.'
He also criticised Boris