Kelly's Favorite

My cat Sesame is dead. She was a stray cat and lived outdoors. She wasn't really 'my' cat, but she let me pet her and my family fed her. She is about to turn 1 year old, and she was born in my neighbor's backyard. She was from a litter of four cats, but now only two of the four cats are alive. I don't know what to do. Where to go. Who to tell. What......