She was already doing her makeup by 7am for the Parramatta festival, on what would be a 30-degree day. Twelve hours later, she had taken two party drugs. Diana Nguyen died of MDMA toxicity at the Sydney music festival. Ms Nguyen first took a cap that her friends had bought from men in the line for the toilets, and later took a pill she had pre-arranged to buy at the festival. About 7.40pm, she was stumbling while she danced, was hot to the touch, incoherent and needed to be carried to the medical tent. Her oxygen levels plummeted in an ambulance to Nepean Hospital and she went into cardiac arrest. Ms Nguyen was pronounced dead at 10.17pm, with an autopsy finding MDMA toxicity to blame. Festival deaths being examined at inquest Alex Ross-King, 19 - January 12, 2019 - FOMO - Parramatta.

Joshua Tam, 22, December 29, 2018 - Lost Paradise - Glenworth Valley, Central Coast.

Callum Brosnan, 19 - December 8, 2018 - Knockout Games of Destiny - Sydney Olympic Park.

Diana Nguyen, 21 - September 15, 2018 - Defqon.1 - near Penrith.

Joseph Pham, 23 - September 15, 2018 - Defqon.1 - near Penrith.

Nathan Tran, 18 - December 17, 2017 - Knockout Circuz - Sydney Olympic Park .

The inquest heard the 21-year-old was not known to use recreational drugs often, and had been to festivals without taking drugs. She played indoor soccer a few times a week and was engaged to marry her school sweetheart Andy, after they got engaged on her birthday while holidaying in Hawaii last year. Ms Nguyen graduated from Penleigh Essendon Grammar School in 2014, had done courses in fashion and beauty, and was working at a duty-free shop at Melbourne Airport. The inquest, held by NSW Deputy Coroner Harriet Grahame, is looking into the deaths of Ms Nguyen and Ms Ross-King, as well as Nathan Tran, 18, Joshua Tam, 22, Callum Brosnan, 19, and Joseph Pham, 23. MDMA was the causal factor in each of the deaths. Counsel assisting the coroner, Peggy Dwyer, said during her opening address on Monday that Mr Brosnan took up to nine MDMA pills before collapsing at Sydney Olympic Park train station after attending the Knockout Games of Destiny.

Mr Tam's mother, Julia, said the "just don't do it" approach wasn't working and that recreational drug use would not "magically disappear". "Are we really a society with such little care for each other that we are happy to stand by and wait for them to die? The reality is that we will continue to lose more of our youth if we don’t change our approach to harm minimisation," Mrs Tam said alongside her husband, John, outside the NSW Coroners Court in Lidcombe. Mr Tam, a talented rugby player from Queensland, died after consuming MDMA at the Lost Paradise music festival on the Central Coast on December 29 last year. Joshua Tam, 22, died on December 29, 2018, after consuming MDMA at the Lost Paradise music festival on the Central Coast. Dr Dwyer said information recently gathered by the NSW Ministry of Health suggests between 70 and 90 per cent of patrons will take drugs at music festivals.

The court heard that, following the spate of deaths, NSW Health interviewed a number of festival patrons who had suffered an adverse reaction to drugs so as to understand the patterns of use. She said the inquest would hear evidence suggesting that the presence and behaviours of police and security could exacerbate the risks associated with drug use "although that is clearly the opposite of what is trying to be achieved". Loading Replay Replay video Play video Play video Dr Dwyer said that Ms Ross-King was a hardworking young woman who was well-respected by her peers and teachers, and whose mother described her as "responsible beyond her years". The inquest heard Ms Ross-King occasionally took MDMA on weekends last year but was not interested in using the drug during the second half of the year.

On January 12, Ms Ross-King took a quarter of an MDMA capsule before she headed to the festival. About 30 minutes later, she had another capsule and drank alcohol she had brought. Joshua Tam, 22, died after consuming drugs at the Lost Paradise music festival on the Central Coast. Credit:Facebook As she and her friends made their way towards Parramatta Park, she was seen to take a further two capsules before entering the festival, where there was a large police presence, including sniffer dogs. "She told her friends that, because she was nervous about being caught by police, she took the drugs at once like that to avoid the risk of being caught bringing them into the festival," Dr Dwyer said. The court heard temperatures peaked at almost 35 degrees at the festival and Ms Ross-King was drinking vodka and energy drink Red Bull. A friend told her she needed to have water instead.

When she arrived at the medical tent, she was critically unwell and seen by medical staff to be combative. She was taken to hospital, where she went into cardiac arrest. Callum Brosnan's death is also being examined by the inquest. Credit:Facebook NSW's Chief Health Officer, Kerry Chant, is expected to give evidence that police operations were "front and centre" in the minds of attendees consuming drugs. She said there would also be evidence about whether the use of sniffer dogs at festivals increased or decreased the risk that a young person would consume illicit drugs at all, and whether they would do so in a way that was more or less risky. Fans to cool the crowd on hot days have been used among a raft of recent harm-reduction measures, as well as "chill-out" spaces, and the provision of free bottles of chilled water and electrolyte drinks.