A man has been found guilty of killing a 15-year-old boy in Teletubbies Park before Notting Hill Carnival in a 'West London Gang War' shooting.Aderahman Boumzough was found guilty of murdering Rene Graham on Friday after gunning him down while surrounded by parents and children at Emslie Horniman's Pleasance open space in Ladbroke Grove last July.Chilling CCTV footage showed the balaclava-clad 25-year-old calmly approaching the busy park before he pulled out a handgun, walked through the children's play area and shot Rene in the chest.Boumzough was then captured chasing and attempting to shoot a man in the middle of a busy street, but the gun jammed and he fled the scene, the Metropolitan Police said in a statement.More than a year passed before Boumzough, who was also convicted of attempted murder at Woolwich Crown Court, was arrested and charged for killing Rene on September 2 2025.During the police investigation, Boumzough's phone was found to contain a video of him appearing to rap about the firearm jamming.In the video he said: 'Don't you hate it when your ting jams? I was prepared to take soul, but Allah had a different plan.'After the verdict was given, Detective Chief Inspector Alison Foxwell, who led the investigation, said: 'While only a small number of people came forward, I would like to thank those individuals who provided statements and supported the investigation, including attending court, who refused to allow a dangerous individual such as Boumzough to live amongst them.' Aderahman Boumzough was found guilty of murdering on Friday after gunning 15-year-old Rene Graham down last July CCTV footage captured Boumzough calmly walking down the street and pulling a handgun out of his pocket Rene Graham, pictured, was shot in the chest in front of families and children in Teletubbies ParkA month after the murder, Rene's mother, Janay John-Francois made a plea for help and a year later Crimestoppers offered a £20,000 reward for any information that would lead to the suspect's arrest.In a statement released through the Met, Ms John-Francois said: 'I cannot begin to describe the depth of my pain after losing my precious angel.'The emptiness and heartbreak, there are no words that can capture the agony of my loss.'This is a grief so profound I would not wish it upon my worst enemy – I've lost everything, my world will never be the same.'She added: 'Today is my son, but tomorrow could be one of yours. Please stand with me through the darkest of times.The shooting took place at an annual pre-Notting Hill Carnival event and allegedly came amid a violent postcode war between rival gangs. Locals claimed that two gangs operating near the area have been involved in a long running 'war' with each other - the Ladbroke Grove Boys (LGB), who are based on the Kensal New Town Estate, and the Harrow Road Boys (HRB) from the Mozart Estate.Beverley Campbell who was at the Park Lime event told the Mail: 'Everybody around here knows about the war between the LGB and HRB. Further footage showed the shooter chasing down a second victim in the middle of a busy streetThe 'West London gang war' shooting took place in Hazlewood Crescent, close to the boundary between the W10 and W9 postcodes Police tape cordoning off the area near Emslie Horniman's Pleasance park - also known as Teletubbies Park - in London'This is quite a rough area and gang members attacking each other is not a new thing.'Kelvin, 38, a local resident of the Kensal New Town Estate said: 'It may sound a bit crazy to outsiders, but this rivalry is not a new thing. 'It's been going on for years and all of us refer to each other as from being 'over the water.'The Mozart estate was completed in 1974 and is made up of 737 houses and flats in 25 medium-rise blocks.Since then, it has acquired a reputation as one of the capital's 'sink estates' and is blighted by poor housing conditions, crime and drug dealing.The Kensal New Town estate was completed in the 1970s and is made up of around 700 flats and homes that are also affected by a variety of social issues.Both are just a stone's throw from multi-million-pound homes and flats in Notting Hill that are home to A-listers and are among the most expensive properties in the country.The trial lasted two weeks and Boumzough will be sentenced on July 3.