i feel your pain, had another story with diff. detailes and same ending. we adopted a little kitty on the street, vaccinated her, and it died nearly in 10 days right behind our faces, when was playing on a chair with a little rope. she already became a beloved member of our family. it was a momentari rediculous death, no one to blame. we buried her, it was winter. this sort of things damn happens. and I have no general solution how to act. dont look, turn your face off, when you see such a kittie thrown to the street? idk. :/