A 15-year-old schoolgirl who jumped to her death under a train at St Pancras Station took her own life, a jury has found today.

West Hampstead ballerina Tallulah Wilson was hit by a train at St Pancras International on October 14, 2012.

Jurors who heard the inquest into her death at St Pancras Coroner’s Court have today returned a narrative conclusion and found that the troubled schoolgirl killed herself.

The foreman, a member of the jury appointed to address the court, highlighted the importance of an online life for young people.

“We are all responsible to gain a better understanding of what needs to be achieved through appropriate dialogue and this is a particular challenge for health professionals and educators.”

Senior coroner for north London Mary Hassell will now prepare a Prevention of Future Death report, which will be sent to relevant organisations who have the power to reduce the risk of suicide.

On the first day of the inquest last week, Tallulah’s mother Sarah Wilson told the court that her daughter was “addicted” to self-harm and suicide blogs on a blogging website.

She created a fantasy account portraying herself as a cocaine-taking anorexic for her 18,000 followers and would post photos of self-harm wounds, apparently her own.

She also filled pages of her journals with the words “fat”, “ugly” and “worthless”, which she would then photograph and post on her online blog.

Her mother discovered Tallulah’s online life just days before her death and contacted the website to have the account deleted.

“She went berserk,” Ms Wilson told the jury last week. “She was screaming, banging her head on the wall and pulling her hair. But I couldn’t let her carry on. She was brainwashed.”

She had weekly appointments with child psychiatrist Dr Andy Wiener, of the Tavistock and Portman Trust in Belsize Lane, Belsize Park, from May 2012 after she was diagnosed with severe clinical depression in February.

Tallulah’s grandfather dropped her off at The Place dance school in Euston for her weekly GCSE dance class on October 14, 2012.

Tallulah, who was once headhunted by the Royal Ballet School, waved to him from inside the building but she did not attend class that day and CCTV showed her sitting on a train platform at St Pancras International Station before jumping onto the tracks.

The jury returned a narrative conclusion and found that the ballerina killed herself.

The jury also highlighted that an online life is important to young people and that both health professionals and educators should work to gain a better understanding of their online world.