and really kind of making a plea to the person who may be responsible for her disappearance to sort offense come forward and to have a little insight to the world and to what her and her husband have gone through and her friends and family. >> let's talk about the facts of the case. at this point we know that lauren was last seen at 4:30 in the morning walking back to her offcampus apartment. what else do we know? >> we know at this particular point she left the kill roy's bar around 2:27 a.m. they did make a stop off at her apartment. she was there for a short period of time. and went to another apartment building. she was last seen in an alley way. after the moments sometime after 4:20 a.m. from that point on her tracks were not able to be traced. there are some surveillance photos and some surveillance video that can help to kind of close in the time line, but many people have not come forward with information. as a matter of fact a lot of people who saw her in the final