This is the first picture of a teenage boy stabbed to death as he walked home from an anti-knife crime rally.
Homicide detectives believe Elijah Dornelly, 17, was ambushed by two attackers who had lain in wait in a side street off Walthamstow High Street.
Neighbours dialled 999 after hearing “shouts and screams” coming from a Lidl supermarket car park.
Paramedics found the teenager lying in a pool of blood with a single stab wound. He was pronounced dead shortly after arriving at hospital at 11.30pm on Sunday.
Elijah, a former pupil at Kelmscott School in Walthamstow, was the 11th person to be stabbed to death in less than a fortnight in the capital, and the fourth in just four days.
Scotland Yard said today that detectives are investigating two further knife attacks on teenagers yesterday.
A boy in his mid-teens was found with a stab wound to the back in Jamaica Road, Bermondsey at around 5.45pm while an 18-year-old man suffered stab injuries to his legs in a disturbance near Upney underground station in Barking at 7.15pm.
There have been no arrests and both teenagers were in a stable condition in hospital today.
Mr Dornelly had attended the London Peace March earlier on Sunday, joining hundreds of campaigners including the families of knife crime victims, marching through Hackney declaring: “Enough is enough”.
Tracy Prescott, an organiser of the march, wrote on the group’s Facebook page: “So sad to hear that one of the young people who was at our march yesterday was killed in Walthamstow when he left the march. Enough is Enough.”
The teenager’s family, including his younger sister, were last night in mourning at their home, half a mile away from where their “much loved” son was killed.
A family friend said: “He was a lovely boy, he was always round my house and looked out for my daughter.
“You have to know where your kids are all the time, and even then it might not be safe.
“It’s a shock to our whole community. A lot of people assume he was in a gang but that’s not the case – he was always polite.”
Her daughter, 16, added: “He was funny and silly and would always want to make you laugh. He would always be with his friends they loved him and were so important to him. His younger sister is heartbroken – she looked up to Elijah so much.”
A classmate at Kelmscott School said: “Everyone there loved him, he was the one guy that lit up the room, he was so funny, cheeky and smart when he put his head down.
“He knew how to make people smile. Everyone has been affected by this, in no way would we have imagined him to leave the world like this. So many people are crying even the ones who weren’t so close to him.”
Colin James, of Gangs Unite, a charity that works with east London gangs, visited Elijah’s family last night.
He said: “A few of his friends were very angry about what happened, there was a lot of anger and it was getting to dangerous levels. There is a small window after a tragic event like this which can set kids on a different path.”
Anyone with information should call 020 8358 0400 or ring Crimestoppers anonymously on 0800 555 111.