Just like England in medieval times, where people kill each other to get to or protect the throne, cats, being territorial creatures, also do that to eliminate any threat to their kingdom.

Sad but true. Kittens gone missing under mysterious circumstances, kittens found dead etc...
 

That is sad. I still remember Little Blackie, Sesame's Sister, who passed away after 5 days. Sigh.

My mom also once found 4 newborn kittens under the car, 3 were already dead. The other one died on the 3rd day after we sent it to the cat mid-wife.

I guess its fate and there is nothing we can do about it.
 

Well, what to say...some cats have short life. So much for the saying that cats have nine life.