>> those who knew kristine say she would never run off as police had suggested. friends say 28-year-old kristine kupka had everything to live for. with a 3.97 grade point average, she was two months from graduating from baruch college and had plans to go to law school. she had a steady job at a new york city restaurant, and she was having a baby. >> get over here. you were a good dog. you didn't bark. >> kristine's mother, elaine bodell. >> she was ready to have a baby. her older sisters had babies of their own. she wanted a baby. >> kristine had become involved with rudy persaud, the only son of guyanese parents. he was her chemistry lab instructor at baruch. some who knew rudy said he's charismatic but controlling. >> they started seeing each other in june, and to tell you the truth they slept together pretty quickly and then that's when kristine got pregnant.