I am sorry you are so sad over this. It is a shame what has happened. I have to agree with Carole, they would have died a more prolonged, horrible death and suffered...possible malnourished and ill, had you not taken them. You did your best, you did what any of us here would have done. Those owners should be ashamed of themselves for what has transpired, not you. They were the irresponsible ones, you were the most responsible loving person they had probably ever encountered. That poor dog, had no love, granted it is terribly sad that he has been euthenized, but at the very least, he is healthy and happy now, at the bridge, not chained to a car, and starved...he can now be free, along with his cat friend ((((HUGS)))) to you.