A 13-year-old girl fell to her death after begging a boy to delete tape showing her performing a sexual act on him.
Chevonea Kendall-Bryan had threatened to jump if he did not erase the recording and climbed on to the window ledge of her fourth-floor home as he watched on the pavement below, Mail Online reports.
Records show that Chevonea spoke to him three times on the phone in the hour before she fell 60ft to her death and that she sent him a text message, saying: "How much can I handle? HONESTLY. I beg you, delete that."
Yesterday, coroner Bernard Richmond QC, recorded a narrative verdict at Westminster Coroners' Court.
Addressing the circumstances of Chevonea's death, he said: "From her texts, it is clear she believed him (the boy) to have a video which she begged him delete.
"She was highly distressed. I am satisfied that Chevonea felt so desperate and hopeless that, at about 8pm, she decided to do something dramatic to try to force E6 into doing what she wanted.
"Chevonea climbed out on the window ledge and attempted to demonstrate to him she would jump if he did not do as she asked."
But he added that he did not believe the youngster meant to die, saying "on the balance of probabilities, she lost her balance and fell".
He added: "If she jumped, I do not accept that she formed any settled intention to kill herself."
The coroner criticised Chevonea's school Saint Cecilia's School for failing to deal with complaints of bullying.
The pupil had told teachers she had been sexually assaulted twice by different boys in February 2011, a month before her death.
The court was told she claimed 18-year-old Benn Miebaka had forced her to perform a sex act on him following a half-term party. She said a second boy - E6 - then threatened to smash Chevonea's windows if she did not repeat the act on him the following day.
And months before the tragedy, her mother Amanda Kendall wrote to her daughter's school to ask if anything was being done to tackle a group of boys who were bullying her daughter. She wrote: "Will it take a tragedy to happen before the school actively stops...[this] bullying?"
Mr Richmond accepted Chevonea did have sexual encounters with both men.
He said: "Whether she was intimidated to comply, or out of her depth and unable to process what to do to extricate herself from the situation, is less than clear."