The family of a girl who was killed after taking a party drug has released touching video begging others to not make the same mistake as their daughter.
Amy Virgus died two days after taking a rogue ecstasy pill at a music festival in London.
The 20-year-old thought she was taking MDMA but collapsed after making it back to her Essex home on August 21.
The four-minute Facebook tribute titled "Our Amy" describes how the drug led their daughter to be "violently sick and fitting multiple times".
It had been seen by more than 3 million people and shared more than 65,000 times with the video saying she took the unknown substance in a "moment of madness".
"Our Amy managed to make it home where she collapsed one more time. Her parents were left with no option but to perform CPR on their own daughter in their own home," the voiceover says.
It warns: "The next time you're in that moment, please, stop and think about our Amy and the consequences of her mistake on herself and her family she left behind."
The video adds: "Our Amy made a mistake. Our Amy will never smile again. Our Amy is dead.
"In that moment of madness she took an unknown substance. Our Amy had no idea it would have led to this.
"She will not be celebrating Christmas anymore.
"She will not be celebrating her 21st birthday. She will not be buying her parents Mother's or Father's day cards.
"She will never know the pain she has caused."
The video tribute also features photos of Amy growing up.
The family describe Amy as "cheeky, mischievous, adventurous and caring" and say she will be remembered for her "big heart and caring nature, which led her doing multiple things for charity".
The family are also raising funds for the hospital's intensive care unit where Amy was cared for.