I read somewhere (I wonder if I can still find the source) that the terrorist groups which train the terrorists and provide the logistics etc. reward the family of the attacker generously. The article said that the reward was enough to allow one of the brothers of the attacker to marry – and by extension, to procreate. The "genetic" motive is therefore in my opinion all but irrelevant.
That being said, I don't know if that specifically applies to the perpetrators in question.
I read somewhere (I wonder if I can still find the source) that the terrorist groups which train the terrorists and provide the logistics etc. reward the family of the attacker generously. The article said that the reward was enough to allow one of the brothers of the attacker to marry – and by extension, to procreate. The "genetic" motive is therefore in my opinion all but irrelevant. That being said, I don't know if that specifically applies to the perpetrators in question.