First-- welcome.
Next-- if Danny U is your real name you may want to change your username and request admins to delete this thread. You never know who is reading the forum.
Sorry you had to shoot the dog, I believe you were justified. Even before you notified the owner of the problem.
Over the years I have had to do away with a few, still feel bad about it, but you have to protect what is yours. We now have a very efficient animal control dept in the parish. I have used their services a few times in the recent years.
Two weeks ago I sent a yellow lab running home with a note on his collar. Haven't seen him since.
Another subject that may need to be adressed here is, how are your chickens housed? Securely? If that dog got'em it's only a matter of time before another dog or some other eater of chickens show up. True, the owner of the dog should have been more responsible and by rights your animals should be safe on their own ground. But that ain't the way it is, everything, thinks chickens taste good. It is only an animals nature to kill and eat, be it a coon or a dog. You as the chickens owner need to be responsible enough to provide secure housing. Remember it ain't no fun to raise a hen for 5 months and just when she is ready to lay, something kills her.