Ok I'll try again without breaking rules, sorry.
So since i started following this case, there have been so many questions about the dog, Murphy.
Key ones, imo:
Both can be answered, imo, by the killer being a dog lover and owner.
- Why was the dog not harmed
- Why did the dog not bark
JMO. I would imagine the killer thought there’s no sport in killing the dog. Seeing how he’s already up to killing humans.