Nelson!
A child whose only purpose was to replace his dying brother knew nothing but his duties and responsibilities of an Alpha from the day he stepped into the world. As much as his parents wanted to keep his existence a secret, Jaden, Nelson's uncle, did not take this as a secret worth keeping alone and planned the destruction of his brother by every means possible, after all, he wasn't happy with not getting the position he believed he rightly deserved. His first step was easy, to crush the will of the young child.
Jaden thought, "if I could scare the child, he would be unwilling to take on the position, after all, a coward is not Alpha." For weeks and months, he monitored the child's every move, placing eyes on the child and ears in the walls, everything, even as little as a sneeze was reported back to Jaden.