Knoxville, TN (WOKI) A Knoxville man has plead guilty to a 2023 double murder. Jair Romario Martin pleaded guilty in Knox County court Thursday to the murders of 22-year-old Madison Johnson and 21-year-old Heidi Johnson, who were found dead inside a home in the 400 block of Woodlawn Pike in May of 2023. Officials with…… MORE