Without wanting to cast aspersions on this horrible story, I’ve often wondered whether any effort is made to verify the tales of woe on Go Fund Me etc.
No need for verification, either you believe the story or you don’t.
If however you did have evidence that the story is completely fictitious then it’s a fraud. You could bring it to the attention of the police or gofundme. Gfm would certainly look into it and pull the fund if need be.
I reckon this one is true, the injuries don’t seem consistent with an accident, even if they were its an injured animal and the owner can’t afford the treatment (not everyone can afford insurance, and don’t mention the obvious, I know). I’d have sent a fiver if the target hadn’t been reached. If it turned out I’d been scammed then shame on them not on me.