A patient at Christchurch's Hillmorton Hospital made a threat against the prime minister less than a year before he killed a mother-of-four, an inquest heard. The incident occurred in Christchurch, New Zealand. The patient, whose identity has not been disclosed, was a hospital resident at the time of the threat. The murder took place in the same city. The inquest is examining the circumstances surrounding the killing. The prime minister was specifically named in the threat. The victim was a mother of four. The inquest is ongoing. The hospital has not commented on the matter. The case highlights concerns about patient safety in healthcare settings. The incident is under investigation by local authorities. The threat was made in the months leading up to the murder. The victim's family has not made public statements. The inquest aims to determine the sequence of events. The hospital is cooperating with the investigation. The case is part of a broader review of security protocols in public institutions. The threat was discovered during a routine check. The murder remains unsolved. The inquest is expected to conclude in the coming weeks.