Police trace weapon's history
Police say they know where Edward Livingstone got the shotgun he used to kill his children on Wednesday.
Livingstone, 51, used the shotgun to kill his children, Bradley, 9, and Ellen, 6, around 10pm while they slept in their Kiwi St home in the Dunedin suburb of St Leonard's.
Police Inspector Greg Sparrow said today police now knew where the weapon came from.
"Police identified early on in their inquiries how Mr Livingstone accessed the gun," he said.
Sparrow would not be drawn on whether Livingstone, who did not have a firearms licence, was given the shotgun or was able to buy it.
"These details form part of our inquiries and investigation," he said.
"The investigation is likely to continue for a number of weeks.''
There were a significant number of inquiries to be completed, he said.
Dunedin continued to mourn for the children today with a notice published by the family in the Otago Daily Times saying the pair were "colourful and delightful".
Their funeral was planned for Saturday.