Sorry to hear about your rabbit its a few years since ours died. We never did replace him as the children had become teenagers.
The teacher I work with yesturday got up to fur all over the back garden. When she went out to see what was up she noticed the dead rabbit. It had faught for its life with the fox and lost she has to find a way to tell her 4 yr old daughter about this. Foxes are not the angels that the anti hunt brigade think they are. this rabbit was in its cage and the fox messed around until it got in. If they only killed for food I wouldn't hate them as much but they kill just for fun they can be full and still kill someones pet.