Oh heck Nattylou, that story is very sad. I'm so sorry that happened to your friend.
I understand the feeling of having a lifelong passion destroyed though. in the short time we had Zed that one darned dog took away an entire lifetime of magnificent memories and knowledge of a particular breed for me. i lost my way for a while following him.
I've found my way back, thanks to the lovely Logan, but know what it's like. I'm so sorry your friend has been devastated to this degree.