(Newser) – Authorities have a person of interest in the death of 15-month-old Evelyn Boswell, whose body was found in Tennessee in March. The Sullivan County Sheriff's Office declined to identify the person of interest, who is under investigation, per WJHL. Evelyn's mother, 18-year-old Megan Boswell, remains in jail following her Feb. 25 arrest on a charge of making a false report. "We were immediately getting deception and lies from [Megan]," Capt. Joey Strickler tells WJHL.