A teenager believed to be Britain's youngest hitman is facing a life sentence for shooting dead a young mother in a contract killing.
Santre Sanchez Gayle, who was 15 when he committed the cold-blooded murder, was paid £200 to shoot 26-year-old Gulistan Subasi with a sawn-off shotgun.
CCTV footage shows the teenager, who went by the street name Riot, walking up to the flat, pulling a gun out of his rucksack and opening fire on the victim before running from the scene.
A jury found both the boy, who is now 16, and his recruiter Izak Billy, 21, guilty of murder after a two-month trial at the Old Bailey. They will be sentenced on Tuesday.
Sanchez Gayle was contracted for £2,000 by Billy and taken on a recce of the scene by a second man.
He was later seen on CCTV arriving at the address in Hackney, east London, by cab at around 8.22pm.
Footage shows him positioning himself to shoot through the protective metal gate as soon as Miss Subasi opened her door.
Miss Gulistan's mother Dondu said they were eating dinner when there was a knock on the door.
She told the court: "She said 'mum, you sit down and eat your dinner.'"
Police arrived at the seen to find Dondu Subasi cradling the body of her daughter in the hallway of the flat.
She had suffered a large gunshot wound to the chest and was declared dead shortly after 9pm.
The teenage hitman was arrested after witness Ryan Hatunga, 19, came forward to say the boy had confessed he was the killer and had complained he only received £200 of the £2,000 he was promised.
Three other people, including Miss Subasi's ex-husband, Serdar Ozbek, 28, and two alleged middlemen Leigh Bryan, 25, and Paul Nicoloau, 29, were cleared of the offence.
The prosecution had alleged that Mr Ozbek ordered the killing while on holiday in Turkey in order to prevent Miss Subasi getting custody of their son and causing him to "lose face".
The court heard that Miss Subasi had returned to her home country of Turkey in 2005 after her relationship with Mr Ozbek broke up.
She left her son to be looked after by her mother Dondu and Mr Ozbek's family.
Prosecutors alleged Mr Ozbek and his family became concerned that Miss Subasi would kidnap her son after she returned to London in 2010 hoping to see her son on his seventh birthday.
It was claimed that Mr Ozbek, who lived in Wood Green, north London, called his brother Hussain to set up the killing.
The jury heard evidence that Gulistan Subasi had been threatened by at least two other Turkish men, including her fiancee.