This is David.. I've been watching ur youtube video for a long time and I just found out about this horrible news today when I checked the comments on bing video
I feel really bad because not only me but my family love Bing too...he's such a great, unique guinea pig and he brought me a lot of smiles and laughs.
I believe he'll be a cute piggy angel in heaven, and he'll also remember you forever.
It's the saddest when u don't know what happened to cause their death, one of my friends had that experience as well...
Best wishes
David