What the heck do you call????

[kycat1]

You make the call (this actually happened in a state tournament game)!

Team A down by 1 point with 5 seconds in the game. Both teams in the bonus. OOB throw end on sideline in A’s backcourt after time out. A1 throws to A2 who is confused and dribbles to the wrong basket and puts up a shot that hits the backboard and then rebounds off of the rim. A2 then jumps up, grabs the rebound and starts to shoot the ball again at the wrong basket.
B1, thinking A2 is about to score, jumps up to block the shot and fouls A2 after the ball leaves A2 hands but before the horn goes off to end the game. Then the ball goes through the basket after the horn.
Yes, all of this happened within the last 5 seconds of the game. Both coaches, all players and all fans are screaming excitedly.
What do you call?
You have just a few seconds to get your crew together and decide. No rule books on the floor.
I'll post the crews correct decision next Monday!