The teenage hitman charged over the murder of a Turkish woman in Hackney was paid just £200 to carry out the killing, according to the prosecution.
CCTV footage showed how Gulistan Subasi, 26, was shot fatally in the chest as she answered the front door on March 22 last year.
The victim’s former partner, Serdar Ozbek, 28, allegedly recruited the gunman, 16, in order to “keep his hands clean” and distance himself and Tottenham’s Turkish Community from the crime.
Prosecutors said Ozbek was afraid Subasi would leave the country with their nine-year-old son, as there was a “distinct possibility” she had already taken steps to take the boy back to her home country, where she was planning to get married.
“The prospect of losing custody, compounded by a loss of face, caused Serdar Ozbek to take an extreme but far from unknown course – namely to contract out the murder of Subasi”, Victor Temple QC told the court.
Subasi was visiting her family in Homerton when she was shot dead on her mother’s doorstep.
Her mother, Dondu Subasi broke down as she told the court: “She was specially coming for her son’s birthday. She was going to give him his present but unfortunately she could not because she arrived on the 20th and on the 22nd…”
Ozbek and the 16-year-old are among seven men, including a 15-year-old, who are standing trial for murder and taking part in conspiracy to kill.
They all deny the charges and Ozbek and the alleged gunman deny charges of murder.
The trial continues.