A week on from the murder-suicide of Maria Claudia Lutz, Fernando Manrique and their two children Elisa and Martin, answers as to what went wrong for the Sydney family are being desperately sought by Maria’s brother.
Juan Lutz Pena arrived in Australia from the family’s native Colombia days after the tragedy and is now trying to understand what lead to a crime that has rocked the northern Sydney community.
Speaking to the Daily Telegraph, a source close to the family said Juan "was very close to Maria and, as a father himself, adored Elisa and Martin. He longed for them all to come back to Colombia to be close to family."
The family were discovered inside their Davidson home along with the family dog last week, having been gassed.
Within days of the discovery, neighbours reported seeing 44-year-old Manrique working on the roof of their house. It is now known he was installing an intricate pipe system that would later turn the house into a giant gas chamber.