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Christian Toro and Tyler Toro "knowingly made firearms" and aided and abetted in the making of firearms at their home in the Bronx from about October 2017 to February of this year, according to a criminal complaint filed in the Southern District of New York.

Christian Toro is also accused of distributing explosive materials to two individuals under the age of 21 in the Bronx, according to the complaint.

On Dec. 4, 2017, a student was arrested after a bomb threat was called into a high school in Manhattan's Harlem neighborhood, and Christian Toro resigned from his teaching position shortly after the arrest, the complaint states.

After the resignation, Tyler Toro returned Christian Toro's school-issued laptop, where a technical specialist found a copy of the "Explosives Book," a text that provides instructions for manufacturing explosive devices, according to the complaint.

On Feb. 8 of this year, multiple law enforcement agents interviewed Christian Toro, who stated that he "had not intentionally downloaded" the incriminating book into the laptop. Instead, Christian Toro stated that he had been researching the 2013 Boston Marathon bombings and had come across a copy of the book.

Christian Toro also told investigators that he never built a bomb and had only looked at the book's table of contents. 

Source :- abcnews