R I P Loki
We lost one that was only 8 years old to cancer about a year ago. It exploded in his stomach. We also weren't sure why he died, so we had an autopsy done. The vet sais that there was nothig that we could have done to save him.
Sorry about your loss.
Remember that the happiness of having them all of the years is much better than not knowing them at all and dealing with the pain of their loss.