Mosman Park double murder-suicide: WA Police investigating ‘critical’ second note found inside family home

A note found at the Mosman Park home where two teenagers were killed by their parents in a suspected double murder-suicide could hold critical answers for the police investigation. The Sunday Times has confirmed that a second note or letter found at the Mott Close property is being carefully investigated by homicide detectives. Detectives are understood to have reached no conclusions as to what each parent’s role was in their child’s death before they were suspected of taking their own lives. Three pets, including a cat and two dogs, were also found dead on the property. It was reported that the note found in the house discussed the mentality of the parents and pointed to some planning behind the incident, which continues to be investigated as a double murder-suicide after the police were first called to the house at 8.15 am on Friday.

WA Autism Association chief executive Joan McKenna Kerr said the incident brought a “deep sense of pain”. “We are deeply saddened by this devastating tragedy,” he said. “We mourn the loss of the lives of these two young people and their parents. Our hearts go out to everyone who knew and loved them. “We recognize that for many autistic people and their families, this news brings not only sadness but also a deep sense of pain. “If any family or anyone you know is struggling with the news of this unimaginable tragedy, we urge you to seek professional support. “You can also reach one of our Autism Counselors on (08) 9489 8900 who will help you connect with the support you need.” Mott Close remained closed to the public on Saturday afternoon and was monitored by coroners and detectives coming and going from the house.