Sorry for your loss.  I have chickens and I also have dogs that have killed some of my chickens.  I love my dogs and I love my chickens.  I know that if my dogs get out and wander from our fenced property that all of my neighbors have the right to protect themselves, pets, and property with lethal force.  I would not hold it against them if they felt they had to put one of my dogs down.  I just hope that my dogs do not cause harm to others(people, livestock, & pets) when they get out.  I will not hesitate to dispatch any theatening animal that shows up on my property that is dangerous to my family and property.  Ultimately it would be my fault if my dog(s) get out and cause harm.  I think that their are to many people today with unrealistic views of their rights/ responsibilities to their animals.  If it is in the act of predation or aggressive towards someone or something and not on it's owners property an individual has ever right to "take action".  I know this subject has gotten alot of attention, but it's a real problem for anyone with livestock / pets.