enough to make her a suspect. >> translator: the famous behavior of amanda knox cannot be justifiable if we compare it to the way normal people behave. >> reporter: in this video amanda and her boyfriend comfort each other outside the house. but at the police station witnesses say they laughed and made faces, heightening suspicions about them. amanda knox and raffaele, the police station would become all too familiar over the coming days. her father, curt, recalls the week after the grisly discovery. >> between the time that they actually found meredith and when amanda was arrested, there was roughly a 90-hour time frame. i'm ballparking the numbers there. during that time, amanda was in the police station for questioning for, i believe it was, 52 hours. >> as the days passed, the interrogations became longer and