Born on May 15, 1993, in Henderson, Nevada, Killebrew attended Southern Utah University, where he played college football for the Southern Utah Thunderbirds. He was selected by the Detroit Lions in the fourth round of the 2016 NFL Draft.

Born on May 15, 1993, in Henderson, Nevada, Killebrew attended Southern Utah University, where he played college football for the Southern Utah Thunderbirds. He was selected by the Detroit Lions in the fourth round of the 2016 NFL Draft.