after months of digging they finally found the main supplier, 19-year-old alexander clausen.t with more than 300 doses of 25i. >> you have the right to remain silent. anything you say can and will be used against you in a court of law. >> the drugs were seized and the entire distribution chain involved in tara's death was finally shut down. just one final question loomed, what would happen to tara's classma classmates, the kids who expe expected to be going off to college soon? not prison. >> religiously i want to forgive everybody. but as parent, let me tell you, it's harder, it's very hard. >> coming up, the stakes are about to go up. tara's classmates may be charged with no less than homicide. >> if you sell a substance that leads to death, you're guilty of murder. >> what will that mean sometimes we use k-y ultragel to enhance my body's natural moisture so i can get into it a bit quicker. and when i know she's into it, i get into it and... feel the difference with k-y ultragel. >>> tara fitzgerald's friends and family had got an lesson, one they never asked for, one that