'Familicide' very rarely happens without warning signs, say domestic violence researchers
![The Walsh family of Harrow during a camping trip in the summer of 2023. A family of four on camping grounds.](https://i.cbc.ca/1.7261141.1720731771!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/walsh-family.jpg)
Steven Walsh of Harrow fit some pattern markers of domestic homicide-suicide perpetrators, according to the latest research on Canadian cases of "familicide" - mass killings involving the death of a spouse or partner and the death of at least one child.