The family of Joseph Burke-Monerville has appealed for information almost one year on from the murder in Clapton.
Joseph, 19, was killed in a case of mistaken identity as he sat in a car with his brother David Dele Bello-Monerville and his twin brother Jonathan Burke-Monerville in Hindrey Road, E5 on the evening on February 16 2013.
Police have offered a reward of £30,000 in the hope that someone will come forward with vital piece of information.
Any witnesses or anyone with information should call the incident room on 020 8345 3985; if you wish to remain anonymous call Crimestoppers on 0800 555 111.
Police are investigating a murder in Clapton. They were called at 21.10 last night to a flat in Lea View House, Jessam Avenue E5 to reports of an injured man. London Ambulance Service and Police attended to find a man suffering from stab wounds.
The 30 year old man was pronounced dead at the scene. Next of kin have been informed but we await formal identification.
Detectives are aware that an argument took place outside the address at approx 4pm between three men.
Officers would like to speak to anyone who was in the area of Jessam Avenue between the hours of 3pm and 9pm yesterday. They are asked to call 0208 345 1570. If you wish to remain anonymous then call Crimestoppers on 0800 555 111.
Police are appealing for witnesses to a stabbing in Hackney.
They were called out to Upper Clapton Road at midday on Monday and found a 27-year-old man suffering from a single stab wound outside Clapton Newsagents.
He is now in a stable condition in hospital.
No arrests have been made in connection with the attack.
Detective Sergeant Paul Ridley from Hackney's Violent Crime Unit said: "This attack occurred in broad daylight in an extremely busy area. I am confident that there are people who would have witnessed elements of the attack."
Police have told our reporter Ria Chatterjee that the three boys - 19 year old twins who were in the back seat and their 22 year old brother who was in the front - had parked the car to go into a local shop when 2 men approached.
They had a short conversation before the 2 men fired three rounds into the car, killing Joseph, and leaving his older brother in a stable but critical condition in hospital. Joseph's twin managed to escape unhurt.
Detective Superintendent Gordon Allison of Operation Trident, which tackles gang-related crime, said: "As far as we're concerned, this looks like a tragic case of mistaken identity."