I have 8 indoor cats, and yes, I realize I’m insane, but never mind that right now. Every day around noon, I’m like the Pied Piper until I decide to feed them. They’re just frantic about getting their lunch.
If I were to die while out and about, would they eventually resort to cannibalism?
I love, I love, I love my Cannibal Cat!
Yeah, sweet Cannibal Cat!
I love, I love, I love my Cannibal Cat!
Each and every day of the year
I also want to add that that I’m not asking about eating each other after they start dying, but would they start killing each other?
Yes they would. Assuming they have the strenght. Cats would eat you before they would eat themselves. I saw a study that when older people died with pets cats would only wait 2 days to eat their owner while a dog would wait over a week sometimes not at all to eat the master.
Per the reader comments on this site, its seems to be pretty common.
As for eating the dead owner, sometimes they don’t wait for death 
Any chance of digging up a cite? My son keeps saying this and I’ve always been curious about the study.
No problem if it doesn’t come to mind easily.
The Straight Dope column on the subject mentions this- the only cite is half remembered second hand hearsay though: 
"…I was attending the 1992 American Academy of Forensic Sciences conference in New Orleans and a forensic pathologist related the following story (paraphrased as best as memory will serve): “Sometimes, when an individual living alone dies unexpectedly, several days may pass before anyone takes notice. Some of these individuals may own a dog or a cat, which will go unfed. In my experience, a dog may go for several days before finally resorting to eating the owner’s body. A cat, on the other hand, will only wait a day or two. Just goes to show you which is more loyal…”
Thanks for the links, Wee Bairn. Wow.
Not a Straight Dope column, a Staff report!
Will cats eat their owners? (05-Jun-2001)
We had a lot of farm cats during my youth and I came around the corner one day to see a mother cat eating the face of her dead kitten. They don’t think about stuff like that. It was just a food source to her and it is not as though she was starving. They were fed regularly and also ate mice and birds that they caught. No telling what the kitten died of, but it was only about a week old. And it must have died during the night, so it was a pretty fresh corpse. Mama Cat probably started at the face because of traces of food residue. I thought it was gross, but she kept crunching away. She growled at me when I tried to take the dead kitten, as if to say, “No, you may NOT have a bite!”