Good-bye sweet Sophie

I loved this kitten. We decided to keep her from the last litter of kitten's M's cat had. M found her cat dead when Sophie was 5 wks. old. Because of this, we have been keeping Sophie in every night, but we let her out to play during the day and especially when the kids are out playing. The other day we went to visit some friends for a couple hours, and when we got back, she was gone. We live on a small farm, we have a huge barn and we should be able to have a couple barn cats. Not anymore. There is something evil lurking around here. We have never had coyotes, and the barn owls didn't come back this year. I just don't know what happened.
Good-bye dear Sophie. We miss you.