Thank you everyone for your kind comments, prayers and thoughts. Thanks also Catty1 for posting a picture of Scooter.
We used to fondly call him "bug eyes" because he always had an expression of surprise on his face.
I really wish I knew what happened to him...it was just so sudden. I emailed Aaron and asked if he knew what might have happened, but I don't think he really knows either. I think Scooter would have been around 13 years old this past November.