Beer Thief in the Neighborhood

We recently recieved an email from our neighbor Brian, about a beer thief in our neighborhood.

Subject: One of You Cat Owners
Has some explaining to do. 

I think it's obvious there has been a cat in the neighborhood stealing from my back yard beer fridge. I would like each of you cat owners to talk with your feline and find out who the culprit is then return the stolen property immediately.

So, I sat down with Rex, and he really didn't have much to say.