The Odum of Ala Igbo
Hail Biafra!
Tutsis have some/minor Horner influences
They and their cousins, the Hema are likely part of the same Nilotic migrations which pushed peoples such as the Maasai, Luo and Sukuma out of South Sudan to the Great Lakes/East African regions.
However, unlike those aforementioned groups they are mostly Bantu in origin and genetic ancestry.