[1] In the 2002 McDonald's All-American Boys Game he played for the East team and he scored 2 points, shooting 1/6 from the field and 0/2 from the free throw line.
[7] Garrison decided to remain in his home state and committed to the University of Maryland, where he opted to major in criminology and criminal justice.
[1] Coach Gary Williams gave him limited playing time in his freshman year, and Garrison started only 6 of his 30 games of the season.
His scoring average increased to 10.1 points per game and he was the top rebounder and the fourth best scorer of the Terrapins behind Nik Caner-Medley, Chris McCray and John Gilchrist.
[9] His senior season saw his numbers decrease to 8.0 points per game (despite a career high of 23 points against Western Carolina) and he only started 10 of his 31 games: he was charged with second-degree assault and fourth-degree sex offense in January 2006 for an incident that dated back to October 2005 in College Park, Maryland where he allegedly grabbed a woman and slapped her when she rebuffed his advances.
[10] During his time with the Maryland Terrapins he averaged 7.5 points, 5.0 rebounds and 1.1 blocks, and he was considered a proficient shooter for his position, with good strength and an effective post game.