A 40-year-old man was found guilty of fatally shooting a teenager outside a nightclub in northwest London, the Metropolitan Police said.
Ashley Wallace shot 18-year-old Tyrece Balcha outside a club in Wembley in the early hours of 21 September last year.
On Friday, an Old Bailey jury found Wallace guilty of murder and possession of a firearm with intent to endanger life.
Police and paramedics were called to the scene in South Way at around 5.30am on 21 September.
Tyrece was found outside the club with gunshot wounds and was taken to hospital, where he died four days later.
Investigating officers later established through CCTV that Tyrece had been involved in an altercation outside the club before he was pursued and shot.
Wallace then fled the scene in a vehicle that was parked nearby.
He was arrested on 25 September - the day that Tyrece died - after police linked him to a car in southeast London.
Officers discovered a revolver hidden inside the vehicle and Wallace's DNA was later found on the gun.
A bullet from the murder scene was also matched to the revolver, the force said.
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Speaking after the verdict, Tyrece's mother, Bonnie, said: "Tyrece's life was cruelly taken from him eight weeks after he had turned 18 years old.
"He was a loving son, brother and friend with the biggest heart, an infectious smile, and a personality that drew people towards him.
"Anyone who knew Tyrece knew his kindness, warmth, and sense of humour.
"Our hearts have been shattered."
Wallace, of Shenley Road in Southwark, is due to be sentenced at a later date that has yet to be determined.
At the same trial, two men were found not guilty of murder, and a woman was found not guilty of possession of a firearm, possession of a firearm with intent to endanger life, and perverting the course of justice, police said.
The jury could not reach a verdict on a fourth man.
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