Help!! HARD decision?!

[Zebdula]

Ok, my question is rather simple. A friend of mine is in a hand with top set and no possible low. The turn gives villian the nut low, a flush draw which hero does not have, and a wrap wheel draw. 25pl - pot around 4-7 dollars. Villian bets pot, hero pushes, villian calls and hits wrap draw for the scoop. My question is, if hero KNOWS villians hand EXACTLY, he would fold top set I am thinking, right?