Connor Norman, 18, was taken to the Norfolk and Norwich Hospital, where he was pronounced dead.

An inquest into his death is due to take place later this year, but a preliminary hearing, held this week at Norfolk Coroner's Court, heard he had died of an "anoxic brain injury, asphyxiation and cocaine overdose".

Following his death, on October 11, Mr Norman's relatives launched a fundraiser in "support for families of young people struggling with the effects of mental health", which has raised more than £1,900.

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Connor Norman was found unresponsive in his Aylsham home (Image: Newsquest)

A tribute posted on social media earlier in March by Mr Norman's mother read: "The last five months, nearly, have been the toughest times of our family's life.

"People have come together and held me and my children up when our world has come crashing down on us.

"So, I wanted to say thank you from the bottom of our hearts, doing this [launching the fundraiser] in aid of Connor's short life has shown us that people love and care for him and his family."

A date for his full inquest was set for September 19.

To donate to the fundraiser, see the following link: www.justgiving.com/crowdfunding/connorsfoundation-norman?utm_term=dbzpBxB72