Townes made three layups, a free throw and scored on a dunk as the Knights opened on a 25-9 run, and stretched it to 39-15 with three minutes left in the first half.
Ronnie Drinnon scored 14 points with 11 rebounds and four assists to lead St. Francis (7-9, 3-2). Greg Brown shot just 3 of 15 from the floor but made 7 of 8 free throws to finish with 13 points. Basil Thompson added 12 points and Malik Harmon 11.
St. Francis pulled to 58-50 with 4:31 left. The Knights made 9 of their last 13 shots to seal it.