A Tennessee woman has allegedly confessed to torturing and killing her boyfriend's 3-year-old son , with cops saying she admitted to putting a cigarette out in the boy's ear and scorching his genitals with a lighter before beating him to death.

"I get to the house, she's standing outside," said Keith Horton, father of victim Kevin Horton, in an interview with local Fox affiliate WHBQ about his girlfriend , Dominica Mosby, 29, of Memphis, who is charged with first-degree murder .

"I go in there to see my son, he's ice cold, he's purple," Horton recalled. "He had been dead."

Love true crime? Sign up for our newsletter, The Law&Crime Docket, to get the latest real-life crime stories delivered right to your inbox.

Mosby has allegedly confessed to killing Kevin on Friday, telling police she

See Full Page