Make the last free throw and the game is mathematically over. The ball will take more than one second to go the length of the court in the air.
Miss the last, and yes, it's possible to get off a shot.
Unless you foul on the heave and make it a 4 point play opportunity.
But really, with 1 sec and no timeouts, a 1 pt lead is enough.
Heat in the last year or two would have closed this game emphatically and buried the Pacers. They are slipping.
Refs are still undefeated.