. >> linda started watching, watching like a hawk as oscar interacted with his daughters. before long, her own suspicions began to grow. more than once, said linda, when she left oscar alone with their girls, she returned to find the eldest daughter's clothes had been changed. was that a sign of something? and more disturbing, she actually saw oscar showing signs of sexual arousal when he held 2 1/2-year-old amy. >> everything kind of added up. i got really afraid. >> did you take either of your daughters to a doctor in turkey to get an opinion about this? >> not in turkey. >> she contacted the u.s. embassy in ankara for help. the embassy's advice? go home. consult an expert in the u.s. and so she did. >> i was feeling like, i can't protect my children from my husband there in the house. >> so one morning soon after, linda waited until oscar had left for work then rushed to the airport with the girls, flew back to michigan. that evening oscar arrived home from the university to discover his family had vanished. he waited increasingly frantic and finally called her parent's