One of three children believed to have been killed by their mother before she committed suicide drew two heartbreaking pictures that are now on the window of their northwest Melbourne home

The first of the two drawings shows a blue and green colored planet with the words: “Save the world”

Claire, 7, was found dead in Tullamarine’s house on Thursday with sister Anna, 5, brother Matthew, 3 and mother Katie Perinovic

“Devastated, it’s so close to my home that these people spent time in my house,” said another neighbor

The little girls’ father, Tomislav, made the discovery – which the police later described as “cruel” – and contacted the police

“She wasn’t your usual bubbly, bubbly Katie, wasn’t really interested in what everyone else was doing, she was very calm”

“Investigators do not believe the 48-year-old man was involved in the incident and the police are not looking for anyone else on the matter,” said a statement from Victoria Police

“The investigators of the homicide squad have taken the preliminary view that the 42-year-old woman is responsible for all four deaths Upon completion of their investigation, a report will be presented to the coroner for examination ”

Flowers and written tributes to the children have also surfaced outside the home in northwest Melbourne

“You are always very nice, loving, caring and Claire has always been my best friend (best friend forever)

For more information about depression, please contact beyondblue at 1300224636 or your GP, local doctor, or trusted person

Tullamarine tragedy

World news – AU – Heartbreaking drawings of a little girl who was killed in the window by her own mother