Police have identified the suspect who opened fire at a Walmart store in Amarillo this afternoon as Mohammad Moghaddam, 54. Mohammad Moghaddam, an immigrant, came to Amarillo with his family eight years ago from Iran. Immigrant services from Amarillo would not discuss with reporters whether they helped relocate the family to the Amarillo area. Police say Mohammad was upset he was passed over for a promotion so he took his manager and another person hostage. He was shot dead by police.