Justice for Ranger and Hatchi

I'm trying to find the responsible person who shot my dog and possible dogs. ( one is still missing) we have offered up a $2000 reward from our own savings for info on the guilty person who would commit such a heinous senseless crime... we by no means are looking to turn this into a profit situation.. we would like to cover medical expenses and possible add some to the Reward... anything after that we would to donate to a Animal rescue organization.... thank you from the bottom of our hearts....