Monica de Leon Barba, a 29-year-old American woman, has been missing since Nov. 29 when she was last seen walking her dog home from work in Tepatitlán, Jalisco, Mexico. Her family found her dog on the street and the FBI is offering a reward of up to $40,000 for information leading to her recovery. Her brother said she was visiting Tepatitlán when she was kidnapped and her family has described the last four months as "torturous."