My old cat had to go out to play

1 HR when she just came to my home from the shelter. But she did not do it anymore 1 or 2 years later. I bought lots toys for her. She stayed with me for 13 years, she never got sick by her own( only once because my fault). She could live much longer! Why? Since I was mad her kept peeing in the garage, so put her out of the house. She was devoted, never ran away, never tried to go to any next neighbor 's homes, just got stuck in the rear and the front court yard. Even she could follow me to take walk every night with out a leash for half month. But all the sudden she just disappeared in the morning on Nov,14th! She either was taken by the coyote, or she was too tired( since we had been walked for 30 minutes in the night of Nov. 13th), just ran away to be hid in the bushes to sleep, then never be able to be woke up! I was regret for did not close the gate! I was crying, crying to death! I never be able to be got over for her loss! I am sill missing her and crying for her! She was my daughter, my companion, my little guard, my every thing!