If I had goats I wouldn't remove horns.... but then goats are not wild animals. Look...I'm not trying to put down the effort here...I would have tried to rescue it too.....but then I would get a hold of someone who's experienced with them because its in the fawn's best interest to be cared for by someone who knows what they are doing with an injured wild animal. Fawns are one of the most adorable things on earth and I know it must be very hard to not try to help it yourself...but please really think about what is in everyone's best interest.... If it is that badly injured you may just be prolonging suffering....if it isn't and it survives (and you don't hand it over to a rehabber) you will do one of two things...keep it, or release it. If you keep it, where will you put it?...a wild deer needs space, a minimum of an 8 foot high fence..if not higher (or a covered space); it WILL be a dangerous animal...no matter how tame it appears (especially if its a buck); deer are herd animals...so it will either be lonely or you will need to find it a buddy..........if you release it and you haven't raised it properly for release it will be unafraid of humans and roads and other human related things and probably wouldn't survive long. I hate to be the pessimist here...but I'm just being realistic....