Cory Jefferson contributed 20 points and 13 rebounds as the Bears (4-1) captured the tournament's third-place game. Isaiah Austin produced a double-double of 13 points and 12 rebounds, while Pierre Jackson added 19 points and nine assists for Baylor.
Heslip's scoring performance was a career high.
St. John's (2-2) was led by Phil Greene IV's 26 points. D'Angelo Harrison added 20.
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