[3] Enrolling at North Carolina Central in 2020, Walker did not play in any games as the FCS season had been canceled due to the COVID-19 pandemic.
[6] In the team's bowl game, Walker caught one pass for 74 yards and a touchdown in Kent State's Golden Flashes' 52–38 loss against Wyoming.
Against reigning national champions Georgia, Walker had one of the best performances of his career, with seven receptions for 106 yards and a touchdown, but Kent State lost to the Bulldogs 39–22.
[21][22] In a controversial and highly criticized decision, the NCAA ruled Walker a two-time transfer, and he was initially denied eligibility for 2023.
[26] Walker declared for the NFL draft after the conclusion of the regular season, opting out of the Duke's Mayo Bowl in the process.
[31] On December 15, 2024, in a Week 15 game against the New York Giants, Walker caught his first NFL career reception and touchdown after Lamar Jackson threw a 21-yard pass on 3rd down.