Genco wrote in his manifesto that his goal was, “the death of what I have been deprived of most, but also cherished and fantasize at the opportunity of having but has been neglected of; Women. I will slaughter out of hatred, jealousy, and revenge.”
Because he is misogynist incel, but that is not a crime. Just like being racist is not a crime, but planing a race based murder spree is. The title is giving context to his motivation for planning a crime instead of simply listening “man accused of planning murder and hate crime”.