https://healthtipforyou.com/

I do not know the law, but I think you would have a partial responsibility in any case , if the tree was lying still on the fence. How is he supposed to fix it before the tree is removed ?
Also keep in mind that in small claims court , just to prove his case by a preponderance of the evidence. Meaning , simply demonstrate that it is likely that their dogs attacked his. He does not have to prove beyond a reasonable doubt.
Good fences make good neighbors. Since the fence is not good right now , why do not you try being a good neighbor . Admit to any wrongdoing, but offer to pay half the bill. $ 125.00 is not much to maintain decent relations with its neighbor. Again , however , do not admit irregularities , if not take him to small claims court .

1, the tree was already rotten or dead before the wind storm , if it can be responible . 2.If it was an act of God that caused the tree to fall , they are not responible . 3 . he has the burden of proof . So let me take you to small claims , fight for what is right and just let a judge handle the situation.