first off i dont think shooting at 200 yrds is that bad, but shooting a fawn now thats a whole nother story, it had to look about the size of a small dog,also it might depend on where his land is at, here in sd i think if you have a landowners permit you have to stay with in 15 square miles of your property.but,i would deffinatly call the gw and report this.i think you tried to do the right thing by trying to put her out of her misery.