The history of mass killings is replete with “lone wolves” lashing out at perceived enemies, but rarely are father-son duos or family members carrying them out together, said a leading expert on mass murder.
The two men authorities say carried out a massacre during a beachside Hanukkah event in Sydney, Australia, are father and son, and are said to have been motivated by Islamic State ideology.
James Alan Fox, a Northeastern University criminologist and leading expert on mass murder, said it is unusual to see father and son, as well as family members, carrying out mass shootings together, though there are some historical examples of intrafamilial mass violence.
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