NEWLAND, N.C.—A woman whose body was found buried in concrete in the basement of her western North Carolina home had fired her caretaker in June, but neighbors said the former caretaker was still living in the woman’s home until late July, according to court documents. Search warrants state Elizabeth Carserino, 53, of Goose Creek, South Carolina, was hired by the family to be Lynn Keene’s live-in caretaker earlier this year after the 70-year-old fell and suffered a traumatic brain injury, WSOC-TV reported. Relatives reported Keene missing in July from her home in Linville Falls, which is located in the mountains about 110 miles northwest of Charlotte, North Carolina. They said they had last spoken to Keene on June 14. Keene’s home was secured and her car was missing when Avery County detectives first checked there. Cherokee police later reported the car was found there. Investigators traced Carserino’s cellphone to the area …