Nope...with me regardless of if he had a collar on, I'm sorry, but a 10 week old kitten would NOT have gone back to that person. If he was near her yard, then yes, but so far from home no way! He would have gone *POOF* and that would have been that. You were a dear to bring the kitten back to her, and don't blame yourself at all please. I agree that the dead kitten should be showed to her. It may make her rethink the next one she sends off to it's death. Bless you for caring for the baby in his short lifetime.