Bell also hauled down eight rebounds for the Wildcats (20-2, 8-1 Big East), who notched a fourth straight win.
Darrun Hilliard added 17 points and JayVaughn Pinkston supplied 11 with eight rebounds.
The Musketeers (15-7, 5-4) were led by Semaj Christon with 17 points and four assists.
Matt Stainbrook logged a double-double of 14 points and 11 rebounds.
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