just days before halloween joel lovelien and his fiance, heather eastling, headed to a local bar packedh costume-clad partygoers, but the night took a horrific turn when joel stepped outside and walked into a troubling mystery. in a case filled with unknowns, one thing was certain, a man was dead. police rounded up several potential suspects, but could they unmask the true killer? here is josh mankiewicz with "under a halloween moon." >> it's the one time when everyone pretends to be someone else, when being two-faced is part of the deal. there's a feeling that maybe the rules don't apply and that during those moonlit hours we all have license to eat, drink and be scary. halloween has morphed from our national salute to sugar into a coast-to-coast alcohol-fuelled party, and nowhere is that more true than in the rough rider state of north dakota. but in october of 2007 several lives would collide under that halloween moon, and at least one person may have used a costume to try to hide his true identity, a murderer. that weekend before halloween here in grand forks heather eastling and he