Thanks for all of your condonelces. I have since calmed down a bit and now I just miss him. Before I was just mostly angry, I felt like he didn't have to be hit if we still had him, plus the fact that he was so close to us all this time.

My step-dad pointed out to me that there is a chance he was begging food off of neighbors and hunting all this time instead of living in someone's house. The only thing is I bet someone would have seen him if he was wandering around outside so close to our house.

Before we got him, he was said to be a stray and had been regularly begging food off of the people who found him/gave him to us. He seemed to always have very strong hunting instincts. I never let Oslo out unless Chester was locked in another room.