This is just horrible. I sure hope they are able to find whoever did this and locate Bella. I'm going to pass this along to LJ and maybe she can get the info out to more people in your area.
There is an excellent sticky about making signs and getting the word out.
http://www.yorkietalk.com/forums/yor...ie-poster.html
This doesn't really apply directly but there are helpful links here as well
http://www.yorkietalk.com/forums/yor...ir-owners.html