Three-year letterwinner at Arlington Heights High School in Fort Worth, Texas ... Had 125 tackles, nine sacks for 50 yards, two forced fumbles and a fumble recovery over the past two seasons, according to MaxPreps ... Had 63 tackles and four sacks in nine games as a senior and 62 stops and five sacks as a junior ... Was a two-time all-district selection (first team in 2016, honorable mention in 2015) ... Also was a two-time first-team all-league pick ... Was the team's MVP ... A three-star recruit by ESPN, and a two-star recruit by Rivals, 247sports and Scout ... Received a grade of 79 by 247sports and 73 by ESPN ... Also competed in power lifting and in track & field at Arlington Heights HS .
Mark Demetrius Brown Jr. was born April 19, 1999, in Fort Worth, Texas ... Son of Rosie Ahmed ... Chose the Aztecs over Texas Tech, SMU, North Texas and Fresno State ... Is majoring in social science.