Loosing one special is always a heavy indescribable  emotion, it takes experience to be able to come close to describe when another goes through grief.
One my clients, lost her Rottweiler dog to snake bite recently. Painfully sad having to go through such loss especially when one so young.

We also went through same situation, 06.08.11. Our Nikita passed away, after the Vet post mortem we were informed it was cancer of blood. I was distraught with the loss and I was not there when it occurred. The one most affected was the daughter Gaby. The rest of the year she was practically sad, not playing no joy, I was their to comfort in my way of understanding yet it was a heartbreak to see her grieve.

GABY

Slowly, she was getting her joy back, started running and jumping all over, and the warmth in my heart to see her hunting and being all jovial.

Nikita 26.10.2006 to 06.08.2011