Before WKU: Harrison joined WKU after spending two seasons at Indiana, where he appeared in 10 games for the Hoosiers. In 2024, he saw action in six games and had one fumble recovery, and in 2023 as a redshirt freshman, he appeared in four games and logged three tackles – all at Michigan. He began his college career at Arizona State, where he appeared in three games as a true freshman in 2022.
HS/Misc.: Harrison prepped at Emerald High School in South Carolina, where he was considered the No. 18 prospect in the state by Rivals and was rated as a top 100 defensive tackle nationally by ESPN. He was named to the 2021 SCFA Class 3A All-Region Team.