The only problem Suga had to resolve before he could confidently approach Zion was the matter of his father— allegedly accused of killing an alpha prime from the Hughes family, who happened to be the younger brother of Zion's mother.
All alpha primes were protected by the alpha prime union, and killing one of them was something utterly unacceptable. The punishment for such an act extended not only to the perpetrator but to their entire family, who would be sentenced to death by the union.
Because the alpha prime population was so small, this harsh penalty served as a warning to anyone planning to eliminate their kind entirely. History— carefully covered up in the mainstream— spoke of mass murders of alpha prime infants in the past, which forged the survivors into a powerful and tightly knit alliance in the modern era.
