All four were Jolly's children, who are believed to have developmental disabilities, WSMV reported.
The deceased woman's brother Anthony Jolly told the site he'd been trying to get in touch with his sister for months; he'd even asked police to perform a welfare check, but officers told him she wasn't home.
"I started going down there, and my nieces and nephews would say, 'Well she's asleep. You can't see her right now.'
"I would say, 'Well all I want to do is see my sister. If I can just see her face I'll be fine and I'll leave you alone.'"
He said the last time he believes he actually spoke to his sister was well over two years ago; since then he thinks one of his nieces impersonated their mother every time he called.
"They lied every time. They would not tell me the truth," he said.