>> we will likely learn more about david laffer when he appears in court possibly as soon as tomorrow. and at the very beginning, you mentioned the fact that one of the victims was supposed to graduate from high school tomorrow. tonight, she was supposed to be at her senior class prom. instead, her remains are in a funeral parlor. >> shepard: four murders, one suspect. as the search continues for the missing college student lauren spierer, her parents are trying to get her friends to come forward with any information they might have. lauren spierer, 20 years old from the university of indiana has been missing since the 3rd of this month after witnesses say she decided to walk home from a night of partying. barefoot. her mother says she's disappointed that only one of lauren's friends has contacted police so far. and that no clue is too small. >> it all leads to filling this puzzle that we so desperately need to have filled. to that end, robby and i have opened a post office box and you