The girlfriend of a "smart and sensible" human biology student shared how his face was "frozen" before he collapsed in a nightclub and died after taking drugs.
Ryan Winkler took a "lethal dose" of MDMA and ketamine with girlfriend Rebecca Law.
The couple took the illegal substances into their home, down an alley, and a forensic doctor was reported to them while they were out.
But the Loughborough University student reacted poorly and Miss Law was forced to seek help when his face "froze" as they partied in a nightclub.
A paramedic treated Mr Winkler and he was taken to the Leicester Royal Infirmary.
However, he was pronounced dead after arriving in the early hours of June 21 last year.
Loughborough University's "smart and sensible" student Ryan Winkler took a "lethal dose" of MDMA and ketamine on June 21 last year, a Loughborough study found
After his death, the 21-year-old's family asked broken hearted people not to take recreational drugs because "the risks are obviously high".
His father, Trevor Winkler, told the investigation that his son's drug use was a "shock".
Testifying at Loughborough Coroner Court, he added: “When he lived at home, he didn't go out to party. He didn't come home drunk. He was very smart and very sensible.
"It just seems that they liked that music and (drugs) were part of that scene."
Miss Law said the hearing of the drugs they used during the night – the sedative ketamine and two doses of MDMA – was a "small amount compared to what they'd done before".
But when they got to the Echoes nightclub in Loughborough, at 2:11 pm Miss Law noticed a change in her boyfriend.
She said the club was "really, really hot and crowded," adding, "Ryan wasn't smiling. His face was frozen.
Ryan was dating his girlfriend, Rebecca Law. The couple were doing the drugs in their home down an alley and while it was outside a coroner was told. She saw his face "frozen" and he went "stiff" just before he collapsed
"I tried to talk to him, but I didn't get much out of him."
Mr Winkler was treated in a first aid room by medic Nash Gooderham.
He described Mr. Winkler as semi-conscious, very sweaty and "very stiff".
Mr Gooderham said he "did everything" but claimed that if the organizer had provided DBE with a radio he could have responded more quickly.
Mr Winkler, a sophomore student in Folkestone, Kent, was hospitalized but pronounced dead shortly after 3:30 a.m.
A pathologist confirmed that he died as a result of multiple drug toxicity.
Assistant Coroner Tanyka Rawdon concluded that the combined effects of the drugs resulted in cardiac arrest and subsequent death.
Ms. Rawden said she was "extremely concerned". Mr Gooderham did not have access to a radio and added that she would write to DBE, according to the BBC.
She added, "While I don't think it would have changed things for Ryan, it might change anything for someone in the future."
After Mr. Winkler's death, his family said of the university: “This was a tragic accident at a time of celebration. We urge everyone not to take so-called recreational drugs as the risks are obviously high. & # 39;
Miss Law then set up a JustGiving website in his mind to raise funds for St. John & # 39; s Ambulance.
Miss Law then set up a JustGiving website in his mind to raise funds for St. John & # 39; s Ambulance
In her description, she wrote: “Ryan Winkler died at the age of 21 in a nightclub surrounded by people who didn't know how to help him.
"This page was created in his mind to raise funds for St. John & # 39; s Ambulance, which offers first aid and life saving courses."
Miss Law remembered him in a touching post and asked Ryan to watch over her.
She wrote, “Not all photos or words in the world could depict how close we were, couldn't even brush my teeth without you hugging me from behind and kissing my back every second of every night that you were close to me to your body and now there is this big empty bed and my eyes won't close if i am told not to cry.
“I miss you and everyone has sent their love for you because you are the most amazing person I have ever met and who has clearly touched the lives of so many around you.
"Please take care of me, I can't do this without you."
Honors were also paid to Mr. Winkler, who worked in a McDonald’s office prior to joining Loughborough University.
Luke Mackenzie wrote: “I am totally shocked and can't believe it, but what a nice person I have known over the past few years and who has been a pleasure to work with.
"Or all the conversations we had about college and science, you were a great guy and thank you for making everyone around you feel so positive!
"Send love to all your family and loved ones, rest in peace, Ryan Winkler, you will be missed."
Shannon Nightingale said, "You are one of the nicest people I have ever met and obviously too good for this world."
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