As a freshman at Odessa College, Cook averaged 4.7 points and 1.8 rebounds per game off the bench. He averaged 15 points and 5.4 rebounds per game as a sophomore. Cook was ranked the No. 76 player in his class by JucoRecruiting.com.[2] He transferred to Missouri State over offers from Louisiana Tech and New Mexico State. He scored at least 20 points in four of his first five games for the Bears.[1] Cook was named Missouri Valley Conference player of the week on January 28, 2019, and twice earned newcomer of the week honors. As a junior, he averaged 12.8 points and 4.3 rebounds per game. Cook was named to the Third Team All-Missouri Valley Conference as well as the All-Newcomer Team.[3] Coming into his senior season, Cook was named to the preseason second team all-conference and established himself as a leader on the team.[4] On November 10, 2019, he scored a career-high 31 points shooting 6-of-7 from three-point range in a 59–50 win over Alabama State.[5] Cook was issued a technical foul for flopping with under a minute remaining in a game against Xavier on November 16, resulting in a loss for Missouri State.[6] He averaged 14.9 points and 4.6 rebounds per game as a senior, earning Second Team All-Missouri Valley Conference honors.[2]