He is a MoCo kid that played his high school ball in the public school system at Gaithersburg High School. Miller was the team captain his junior and senior year at Gaithersburg. Though he filled out the stat sheet, his numbers weren’t spectacular. As a senior, he averaged 13.1 points, 7.5 rebounds, 2.8assists, 2.6 blocks and 1.4 steals per game, while earning first team All-Gazette honors.
The bigger D1 offers weren’t there, but Miller took an offer from Holy Cross in Worcester, Massachusetts.