Howard's layup put Jackson State up 42-38 with 10:55 remaining and after Jordan Berry gave the Tigers a 48-43 lead with just less than six minutes left, Howard added another 3 to make it 51-45 three minutes later.
On UAPB's final possession, Martaveous McKnight took an inbounds pass at midcourt but his contested last-second heave bounced off the front of the rim.
Maurice Rivers chipped in eight points and nine rebounds for Jackson State (12-17, 9-7 Southwestern Athletic Conference). Collins, Howard and Rivers combined to grab all but six of the Tigers' 37 rebounds, while Collins had four -- and Rivers three -- of JSU's 10 steals.
Travon Harper led UAPB (11-20, 11-6) with 10 points and nine rebounds.
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Zion Williamson poked the ball free with a clear path to the basket, the crowd rising in anticipation before he even reached midcourt.
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As a freshman, Arizona State's Kimani Lawrence made three 3-pointers.
Gonzaga seals win with block and slam
Gonzaga forward Brandon Clarke comes up with a big block on Trent Frazier, which leads to Rui Hachimura cruising to a monster dunk.