Six people were killed and four injured when Stephen Anderson took his father's shotgun and went on a rampage in the sleepy North Island settlement of Raurimu, in 1997. Michael Morrah interviewed Anderson and tells his story.

When Stephen Anderson saw his parents and their friends eating breakfast at the family bach in Raurimu, he became convinced they were part of a conspiracy to end the world.

His actions led to one of the worst massacre's in New Zealand's history.

Stephen Anderson was found not guilty of the murders or attempted murders by reason of insanity.

He was granted limited release from a psychiatric facility in 2009.

Newshub investigations reporter Michael Morrah interviewed Stephen Anderson several years ago, and describes what was going through Anderson's mind on the day of the murders.

Go to this episode on rnz.co.nz for more details