Some rather chilling details in this Herald article, from the brother of the wife
https://calgaryherald.com/news/local...ys-her-brother
Got into an argument over vegetable cutting
Tried to physically fight the brother
Wife makes decision to leave
Wife and husband argue over text for days
Mother in law returns home from volunteer gig to find her husband dead - it's probably sheer chance that she wasn't home, where she probably would have been killed
The brother believes that two of the kids saw their father shoot their mother, then drop them off at a relatives before heading off to kill himself.