I'm posting since, while I wasn't as close to her as my brother was, I'll still miss her.
I've been told that today (Monday), Sparki our family cat was put to sleep after the symptoms of a cancer she has had for a few months now had increased to the point where she was unable to jump or climb any more. And being an outdoors cat, she wouldn't of been able to look after herself any more.
She had been medicated for the cancer and but after a treatment of steroids yesterday, it was clear any effect they had would only be slight.