Did a headbutt decide the holt/torres fight? you be the judge.

smokey, are you implying that it was unfair in some way?  The headbutt was unintentional, and Torres is the idiot for recklessly charging right in.  As the old cliche goes, "you reap what you sow."

not at all. just have seen a lot of rumblings on other boxing forums that the head butt didnt end this fight and imo it did. I completely agree torres is an idiot as he def. leaps in, but ref still needs to step in and stop the fight right after that head butt to investigate...

I agree with pretty much all of the comments.  Was Torres an idiot for getting reckless?  Yes.  Was the head butt unintentional?  Yes.  Was the head butt the reason for the ending?  Yes, even Charlie Zelenoff could have loaded up and knocked out Torres at that point.