THE family of a “happy” five-year-old boy whose love of Minions inspired an Island-wide day of remembrance and fundraising have been told that doctors believe he may have had an underlying condition which has yet to be identified.

Kason Le Flahec died aged five years and five months in October 2024.

Last year, Islanders and businesses dressed in blue and yellow for “Kason’s Day” to mark the first anniversary of his death, while a mural created by Graeme Fitchett and children from his Saturday Graffiti Club was unveiled at Centrepoint in his memory.

The combined fundraising efforts raised more than £6,000 for Mont à l’Abbé School, Centrepoint and Autism Jersey.

At an inquest held to establish the cause of his death yesterday, Deputy Viscount Advocate Matt Berry, sitting as coroner, described Kason as “a very happy five-year-old boy who was well looked-after and cared for by his family”.

The inquest heard that Kason, who was autistic and non-verbal, attended Mont à l’Abbé School, where he was doing well. His mother, Ellie Le Flahec, said he looked “really happy” in photographs sent by teachers.

The inquest heard that Kason fell sick and became progressively unwell from 12 October. On 17 October, he showed the symptoms of a seizure, and he was taken to hospital, where he died.

Doctors later found that Kason had megalencephaly – meaning his brain was abnormally large – which may indicate an underlying syndrome that has not yet been identified.

Paediatrician Dr David Lawrenson told the family at the inquest: “I am almost certain that he has some sort of syndrome that hopefully, one day, we will be able to give you an answer to.”

In some cases, he explained, scientists contact Health years after a death with more information, as research evolves.

The inquest heard that a possible condition could have made him more susceptible to norovirus, and that it was possible that norovirus had caused dehydration or electrolyte imbalance, which could have caused his death.

Advocate Berry found that the exact cause of Kason’s death could not be asserted, he said, but it “may have been contributed to” by the effects of norovirus.

He concluded by expressing his deep condolences to Kason’s family.