A warning that the following story discusses suicide. An inquest has heard that a Christchurch man who died after a police stand-off was planning to carry out a mass shooting in the weeks following the mosque terror attack. Artemiy Dubovskiy, who was known as Troy, is suspected of taking his own life early on March the 27th, 2019 after police negotiated with him for hours. Timothy Brown was in the Coroners' Court and filed this report.