Amin Abdullah and two other men were killed during a shooting at the Islamic Center of San Diego by two teenage suspects who later died by suicide.Law enforcement is investigating the incident as a hate crime after finding white supremacist materials linked to the gunmen who were confronted by Abdullah.The security guard is being celebrated as a hero for his actions that saved numerous lives during the attack on the religious facility.A massive fundraising effort has surpassed 1.6 million dollars to support the affected families as the community mourns.