He played college football for the Western Michigan Broncos where he won the William V. Campbell Trophy his senior year.

[2] He again started all 13 games his junior year in 2015, completing 262 of 391 for 3,522 yards, 29 touchdowns, and 9 interceptions, leading the Broncos to an 8–5 record and the program's first-ever bowl victory over Middle Tennessee in the Popeyes Bahamas Bowl.

[1][4] Also beginning coursework for an MBA, Terrell returned as a starter his senior year in 2016, where he threw 34 touchdowns to 4 interceptions, the best TD/INT ratio in the FBS.

[4][5][6] During the season, he broke Tim Hiller's school record for career passing yards.

[10] Terrell now works in business development for Zeigler Auto Group in Kalamazoo, MI.