1000-Lb. Sisters star Katie Slaton, the cousin of Tammy and Amy Slaton, has died after a battle with cancer. She was 37 years old. Tammy and Amy's sister, Amanda Halterman, announced the news of their cousin's death via Instagram on Tuesday, August 26. "It [is] with a completely crushed heart and spirit that I have to post this. My little cousin went to sit at the feet of Jesus yesterday," Amanda, 44, wrote alongside a photo of herself holding up a selection of cookies while Katie posed behind her, wearing a sheriff's badge sticker on her T-shirt and a pair of aviator-style sunglasses.