All I can say is "This should have never happened" I was able to help you out I completely understand the loss that you must be going through but the Humane Society in reality is a pretty good place instead of being casted out on the street. But I could have helped you out. Then your two cats would have had a sanctuary all to them selves without the stress of the shelter environment and all the connections that I have finding them a good home would have been a no brainer. I know you don't have any control over what your mother did but is she totally heartless??? I mean seriously who does that to their child????? I would find someone to talk to for sure you are going to need it.