There are still too many unknowns to explain Noah Donohoe’s behaviour before his death, experts have told an inquest. The four psychology and psychiatry professionals say, however, that they have excluded possible explanations such as illegal substance use and psychosis, jurors at Belfast Coroner’s Court heard. The 14-year-old had been planning to meet with school friends at Cavehill in Belfast after setting out on his bike on Sunday, June 21 2020.