Twin brothers Christian (left) and Tyler Toro (right), 28, were arrested in New York on Thursday by the FBI after explosive materials were found in their home
Christian, a former high school teacher in Harlem, resigned after a student alerted the school of a bomb threat. That student was said to be involved in a sexual relationship with him. His work laptop revealed a manual on how to build explosives
FBI searched the home of the twins on Thursday and discovered the diary of Tyler which detailed plans for a strike and details of an operation called 'Flash'