An inquest into the death of Detective Superintendent Colm Fox has uncovered distressing details surrounding his suicide and the pressures he faced while leading a major gangland murder investigation. Colleagues described Fox as a dedicated officer overwhelmed by responsibilities, overseeing 18 cases at the time of his death in February 2018. A cryptic suicide note indicated that Fox felt he made a significant error during the investigation into the murder of David Byrne. The note, read for the first time in court, expressed his deep remorse and stress leading up to the incident.