It's a sad day for Kim Kardashian.
The cat gifted to her by boyfirned Kanye West, Mercy, died due to a cancer-like virus often associated with breeding.
After discovering she was allergic, Kim gave Mercy to sister Khloe's assistant, Sydney Hitchcock, who recently lost her cat of 12 years.
Although Mercy showed no signs of illness, on Nov. 26 Hitchcock's boyfriend called to tell her Mercy was limp and not moving. They rushed her to an animal hospital where veterinarians made the terrible diagnosis -- a fatal virus, which acts like a cancer, had attacked Mercy's stomach.
Since even aggressive treatment wouldn't help the kitten, Hitchcock decided to have her euthanized.