Parents, and teachers in some of americas Largest School districts. Today we learned of the latest, and we got a look at the emails. Homeland security correspondent jeff pegues has more about that and about the man at the center of the investigation. Reporter the list of School Districts receiving the threatening emails include los angeles, new york, miami, houston, dallas, and now clark county in nevada. The district which includes las vegas schools received the emails yesterday, and officials determined they were a hoax. The dallas emails detailed plans of 46 jihad affiliates for a massacre of epic proportion with Mass Shootings and napalm, propane, and Pressure Cooker explosives for maximum casualty. These emails differ slightly from the one received in los angeles, which talked of 32 comrades and bombs set to detonate via cell phone. While investigators do not know who sent the messages, they say all of the emails were routed through a server in germany run by vincent canfield. The