I figured maybe he'd be fine since he has all of his shots, i'm just too paranoid when it comes to them.

I'm not sure if he was eating it or not, My parents are the ones who went and got him. I have no idea if he killed it himself or not.
It could even still be alive, since don't they do some sort of "fake death" type thing? Or is that another animal i'm thinking of?

The first thing I did was check him to see if he had any bite marks or such.