jessica nelson had been murdered in her nebraska home. ors discovered there was a party at jessica's house before she was killed. and the list of potential suspects was about to grow. meanwhile jessica's friends and families were galvanized by their grief, but could her killer be among them? here again is keith morrison with evil intent. >> it was a week before they could have a funeral for jessica. a small, sad service for family and friends, is what they expected. but it wasn't small. not at all. >> it was overwhelming. just to see that many people knew her, or at some point had cared enough to show up and say hey, we're sorry. >> and some of the young men vowed revenge as they wore their justice for jessica bracelet, her brother, matt, her brother's best friend also named matt once lived with him who knew jessica like a sister. >> he was with us throughout everything, like another son. what you need help with, people would bring over food, he's there helping us carry it in. that kind of thing. >> and helping out, grieving was john mcdow