article: One of the closest friends of Georgina Bartter, who died after consuming an ecstasy pill at a music festival last year, has pleaded guilty to supplying the teenager with the fatal pills that led to her death. A lawyer for Rebecca Hannibal, 19, appeared in front of Downing Centre Local Court on Wednesday. Ms Hannibal had pleaded not guilty to single supply charge at a previous hearing but her defence representative told Magistrate Mark Buscombe she was changing her plea to guilty. Police alleged Ms Hannibal, of Cammeray, supplied a number of 'purple speaker' pills between 2pm and 3:30pm on November 7, the day before the Harbourlife dance festival near Mrs Macquarie's Chair where Ms Bartter collapsed. Rebecca Hannibal (centre) has pleaded guilty to supplying her best friend Georgina Bartter (far right) with 'purple speaker' ecstasy pills in the lead up to the Harbourlife dance festival . Ms Bartter was just 19 when she died after collapsing on the dance floor in November last year after taking 'one and a half pills' 'Purple speaker': She is believed to have had an extremely rare adverse reaction to the substance she took on the night . Ms Bartter is believed to have had an extremely rare adverse reaction to the 'one and a half pills' she took on the night. She collapsed on the dance floor and was rushed to St Vincent's Hospital but died from multiple organ failure. Police charge sheets seen by Daily Mail Australia allege the pills were purchased from Matthew Forti, 19, who has been charged with supplying a prohibited drug between October 27 and November 8 last year. He has also been charged with supplying a prohibited drug in Northbridge in January this year and possessing a drug in Willoughby in February. Police alleged Ms Hannibal (front, with Ms Bartter pictured behind) purchased a number of 'purple speaker' pills between 2pm and 3:30pm on November 7, the day before the Harbourlife dance festival . Ms Hannibal (left) and Ms Bartter (right), both 19, were very close friends and had just returned from a five week European holiday together with a group of friends . Police charge sheets seen by Daily Mail Australia allege the pills were purchased from Matthew Forti, 19, (left) who has been charged with supplying a prohibited drug between October 27 and November 8 last year . Mr Forti pleaded not guilty to three counts of supplying drugs and possessing MDMA at the Downing Centre Local Court on March 25 and will return to court in May. Tragically, the two young women shared a very close bond. They were 'best friends' and had travelled to Europe for five weeks together just months before Ms Bartter's death. Facebook is filled with photos of them together, with the teens pictured celebrating and carefree at Ms Hannibal's 18th birthday party. Ms Hannibal (left) was arrested and charged on December 23, more than a month after Ms Bartter's tragic death on November 8 . A lawyer for Rebecca Hannibal, 19, appeared in front of the Downing Centre Local Court on Wednesday. Ms Hannibal had pleaded not guilty at a previous hearing but her defence representative told Magistrate Mark Buscombe she was changing her plea to guilty . Ms Bartter was remembered as an 'old soul who loved her family' at a memorial service in mid-November, her brother Harry recalling her as 'perfectly imperfect'. Ms Hannibal did not appear at court. Her defence lawyer, Mr Robinson, bizarrely refused to provide his first name and declined to speak to reporters. She will appear in court on June 10 for sentencing. Hundreds attended Ms Bartter's funeral service St Mary's Catholic Church in North Sydney a week after her death . The 19-year-old woman died at Harbourlife festival (pictured)at Mrs Macquarie's Chair near Sydney Botanical Gardens . Sorry we are not currently accepting comments on this article.
highlights: Georgina Bartter's best friend has pleaded guilty to a drug supply charge .
  Rebecca Hannibal, 19, was first charged with supplying ecstasy to Ms Bartter in December but originally pleaded not guilty .
  Police allege she purchased the ecstasy pills from Matthew Forti, also 19 .
  Ms Bartter, 19, died from a suspected ecstasy overdose in November .
  She was taken to hospital after suffering multiple organ failure .
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