In a shocking incident in rural New South Wales, three people have been killed in a shooting that is suspected to be related to domestic violence. The attack has left one person seriously injured and has prompted a major police operation in the area. Authorities have urged residents to stay indoors as a manhunt is underway for the alleged gunman, who is reported to be on the run. This violence comes as the nation observes a day of mourning for recent victims of a separate attack, further amplifying the grief in the community.