Salvador is Missing!

I am so heartbroken right now. My sweet cat Salvador has been missing since Friday. He is an inside/outside cat that is usually in more than out. We haven't seen him all weekend or today. I have a bad gut feeling that we aren't going to see him again. He is only eight months old so we haven't had him that incredibly long, but it was long enough for me to get very attached. He was the perfect kitty. Friendly, laid back, affectionate, good with the kids, he played with the dog. I put a missing cat ad on Craig's List and I'll put signs up tomorrow. Hopefully someone found him and he is safe.