Was hanging 3 nooses from a tree a hate crime? Certainly not in the traditional or legal sense, but it was far more than an innocent prank.
You already have racial tensions in this town, and then 3 blacks decide to hang out under a tree where only whites normall hang out, and then the next day, 3 nooses are hanging from the tree.
That certainly implies a possible threat by the white students that the 3 blacks should not hang out under that tree or they might get lynched.
It's not concrete evidence of course, but it is certainly circumstancial, and the students responsible should have been dealt with more seriously than a minor in-house suspension.
Hate crime? No. Reprehensible, ignorant, bigoted, cowardly act by dumb hick racists? Yes.
As for the fighting that followed, everything that happenned after was in response to the original incident. That doesn't excuse any lawbreaking that may have happenned, but it should be taken into consideration in any sentenancing that happens as a result.
added later----------------
Well 5 thumbs down later I guess there's a lot more ignorant, bigoted, cowardly, dumb hick racists out there than I thought!