Not at all unusual for family annihilators. It fits the description to a "T", actually.
'The profile of a family annihilator is a middle-aged man, a good provider who would appear to neighbours to be a dedicated husband and a devoted father,' Levin said. 'He quite often tends to be quite isolated. He is often profoundly dedicated to his family, but has few friends of his own or a support system out with the family.
Focus: Fathers who kill their children
Chris Foster had a large collection of guns and belonged to a clay pigeon shooting club. The men there knew him as a loving husband and affectionate father. He went shooting one last time, at a barbecue, that day. That night, at home, he shot his wife and daughter in the back of their heads, killing them.
Entitled Shame, Family Annihilators, and Toxic Masculinity | HuffPost
71% were employed, with occupations ranged from surgeons and marketing executives, to postmen, police and lorry drivers.
Characteristics of family killers revealed: The male dominated crime most common in August
Sadly, children sometimes become a pawn in a deadly game played between two conflicting parties: the mother and the father. In these situations, the father will murder the child, or even children as a way to “get back at the mother” and “teach her a lesson”. This could be because she is getting involved with other people or simply because of ongoing disagreements.
Deadly Dads: Some of the Shocking Reasons Fathers Kill Their Own Children | The Forensic Outreach Library
From your article. OMG!
First, he beat his healthy son to death with a baseball bat as he slept in bed, followed by his disabled son and young daughter while they were watching television. When he wife came home, he bludgeoned her to death with the very same bat.
After several failed suicide attempts, Lowe was brought to trial where his lawyers argued that as a result of the intense pressure and stress, he simply snapped on that fateful day and had no understanding that what he did was wrong. Shockingly, he was eventually acquitted by reason of mental disease. Lowe even went on to remarry and start another family.