Hill had the ball in his hands in the closing seconds and some miscommunication between Cody Zeller and Brian Roberts led to the winning basket. Zeller did a fine job of picking up the screen from the top of the key as Hill drove the baseline, but he did not finish the play to leave Hill an open look.
Hill was left alone near the left block because Zeller held up to look for his man and Roberts appeared to trail the play, thinking Zeller would pick up Hill. The play ended with Hill converting the open floater, and Roberts missed a desperation heave from just inside midcourt as time expired.
Indiana erased a 21-point deficit in the third quarter to get a third straight win.
Al Jefferson supplied 30 points with 13 rebounds and Roberts tallied 19 points for the Hornets, who have dropped two straight.