The Aggies shot 52.8 percent (28 of 53) from the field, had 15 steals and made 13 of 16 from the free-throw line.
The Hornets have lost 12 games in a row, tied for the second-longest active losing streak in Division I. Fellow MEAC member Coppin State beat Florida A&M earlier in the night to end a 20-game losing streak dating to last season.
Mannion, who recently reclassified and is ESPN's No.11 overall player in the class of 2019, chose Arizona over Marquette.
He'll fit in with Sean Miller's plans for a faster tempo on offense.
The cream of the crop of American high school basketball will congregate in Colorado Springs from Oct. 5-7, as USA Basketball unveils its newly expanded Junior National Team minicamp in collaboration with the NBA, NCAA and NBPA.
|North Carolina A&T||11-5||1||20-15|
|North Carolina Central||9-7||3||19-16|
|South Carolina St||6-10||6||10-22|