NASHVILLE, Tenn. (AP) — Nashville Mayor Megan Barry said she plans to continue serving in office after revealing that she had an extramarital affair with the former head of her security detail. Standing alone in front of TV cameras as she explained herself to reporters for about 15 minutes Wednesday night, Barry apologized, saying she's embarrassed, sad and sorry for all the pain she has caused. The mayor also said in a news release that she accepts full responsibility for the pain she caused her family and the family of Sgt. Robert Forrest, her former security chief.