Sad day. My neighbor found one of our two outside cats curled up between his house and his motorcycle, dead. No blood or marks of any kind. We think she either froze or was poisoned. We had been taking both outside cats in over night on the real cold nights, but she had been missing for a couple of days, which we thought nothing of because she would go on hunting forays at times and be gone over night. She was hands down the best hunter we ever had. Once she killed 3 squirells, 5 chipmonks, a rabbit and two birds within 24 hours, to feed to her kittens. She and the other cat were almost inseperable. Many times they would walk shoulder to shoulder. The male has been searching for her, and looks very bedraggled, I'm very worried about him.