Onwukaife redshirted as a true freshman in 2010. As a redshirt freshman in 2011, he contributed in all 14 games, earning spots on the special teams & as a second rotation linebacker. As a redshirt sophomore in 2012, he battled numerous shoulder injuries requiring operations from Dr. James Andrews. He would later be declared medically disqualified for the remainder of the season. In 2013 as a redshirt junior, again Onwukaife was a solid contributor in rotation with the linebacker corps as well as the special teams units. In his senior year a continuation of shoulder injuries would lead to another medical disqualification and would prematurely end his college career. Onwukaife resumed on scholarship and later completed his undergraduate degree.