Planning for suspected murder suicide in Sydney traced back weeks

By Ava Benny-Morrison
Updated October 22 2016 - 11:13am, first published 10:47am
Floral tributes gather outside the Sir Thomas Mitchell Drive home in Davidson after a suspected murder suicide.  Photo: Nick Moir
Floral tributes gather outside the Sir Thomas Mitchell Drive home in Davidson after a suspected murder suicide. Photo: Nick Moir
Maria Claudia Lutz, husband Fernando Manrique and children Martin and Elisa died in a suspected murder suicide at Davidson in Sydney's north on Monday. Photo: Supplied
Maria Claudia Lutz, husband Fernando Manrique and children Martin and Elisa died in a suspected murder suicide at Davidson in Sydney's north on Monday. Photo: Supplied
A note left at the front gate. Photo: Nick Moir
A note left at the front gate. Photo: Nick Moir

Calculated planning led up to the suspected murder suicide of a family in Sydney's north with investigators tracing the gas used in the tragedy to an order placed weeks ago.

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