[BillyMac]

Years ago, when the three point line was first added to the NFHS rulebook, in order for three points to be scored, there had to be a "try", not a pass, or anything else. Problems occurred where alley oop passes "accidentally" went in the basket, so the word "try" was removed from the scoring definition. I also believe (I'm a little more fuzzy on this aspect) that if the defender, from inside the three point line, tipped the ball, it was originally scored as a two point basket (thus the case play now interpreting this as a three point basket).

Keep both of these ideas in mind as we try to interpret this situation.

I think that the rule, as written, and the case play, leans toward the interpretation of this situation (nice video) as being three point basket, even if we wouldn't score the basket if the horn ending the period sounded before the ball went in the basket because it wasn't a try, nor would we call a goaltending violation, also because it wasn't a try.