her offcampus apartment at about 4:30 in the morning, after a night hoof partying with friend june 3rd, three months ago today. this summer, her parents retraced the steps at the same time of night. rob speier says what they saw disturbed them. we saw people walking, many of them were inebriated, some walking by themselves. our message had not registered with people. reporter: as the school year begins, lauren s apartment complex held safety seminars. we were extremely, extremely disappointed by the lack of turnout. they re either invincible or they are just completely oblivious to their surroundings. reporter: weeks of searching, including last month s search of thousands of tons of trash at a landfill, haven t turned up any trace of lauren. rob and charlene have been in bloomington all summer, putting