it was a hiker who found her body floating in mchugh creek, a few miles from anchorage. at first, they didn't know who it was. no idea on the body. alaska state troopers finally figured it out from the class ring she was wearing. but karen could not take it in. not bonnie, her model child. her conscientious college freshman, who she knew was going to school that day. not hiking. miles and miles from home and the university. >> none of it made sense. she didn't drive, so how did you get out there? somebody would have had to be with her. and she would not have missed school. she absolutely did not go out there on her own. >> in fact, bonnie's sister heard her get up that morning at 5 am and set out on her 45 minute walk through the predawn dark, to catch the bus that will take her to her 7 am class at the university. she usually didn't return home till about 10 pm. packing most of her classes into a few days, because she had a job at sam's club. >> she was incredibly responsible. >> responsible and nurturing, towards her younger siblings. in part because their parents, mot