FBI: A black security screener at Los Angeles International Airport has been taken into custody after quitting his job and making threats that led officials to clear and search terminals at the airport

Nna Alpha Onuoha, 29, has been arrested and remains in custody on suspicion of making threats pending additional investigation. Authorities have searched Onuoha's minivan as part of the investigation, according to FBI spokeswoman Laura Eimiller. Police found several threatening notes in Onuoha's apartment including one which alluded to the 12th anniversary of 9/11.