Kian Harvey, previously of Sands Lane in Oulton, Lowestoft, had been reported as missing by his family in September. 

Police officers confirmed his death after his body was found near to the First and Last pub in Ormesby St Margaret on September 12. 

An inquest into his death was opened at Norfolk Coroner’s Court at County Hall, Norwich, on November 10. 

Led by area coroner Samantha Goward, she established that Kian’s father, David Harvey, had identified his son at the James Paget Hospital, Gorleston. 

In a statement to the court, he revealed that his son, who was born in Gorleston on May 1, 2001, worked as a hospital sterilisation and decontamination unit technician. 

Ms Goward said: “The medical cause of death has been given as inhalation of helium.” 

She added that Kian was known to the mental health trust and that the court was awaiting statements from the emergency services. 

A full inquest to determine the official cause of death will take place next year on May 21. 

Paying tribute to Kian via the website, Much Loved, his family said: “He is much loved and will always be remembered. 'Run fast, laugh hard, be kind'.” 

It also included a hashtag with the words “a man of great promise”. 

Donations raised in his memory have seen almost £1,700 donated for Papyrus and Cats Protection. 

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