A New York City man arrested after authorities found an explosive compound, bomb-making manuals, a gun and ammunition in a Greenwich Village apartment he shared with his girlfriend will appear in court on Friday, officials said.

Aaron Greene, 31, along with Morgan Gliedman, 27, are charged with suspicion of criminal possession of a weapon for the sawed-off shotgun found in their apartment.

Police went to the couple’s apartment on Saturday to question Gliedman, the daughter of a prominent New York doctor, about possible credit card theft, a law enforcement official said.

The detectives discovered a plastic bottle containing seven grams of Hexamethylene triperoxide diaminean, or HMTD, court documents showed. HMTD is commonly used in homemade bombs.

The discovery prompted the evacuation of nearby buildings, an official said.

Police also discovered bomb-making manuals and handwritten notebooks containing chemical formulas, a source said, along with a 12-gauge Mossberg 500 shotgun, ammunition, nine high-capacity rifle magazines and a flare launcher.

A sheaf of papers had a cover page that read “The Terrorist Encyclopedia,” according to court documents.

Greene has been arraigned and held without bail, authorities said. He is slated to appear in state Supreme Court in Manhattan on Jan. 4, they said.

Gliedman’s legal status was not immediately available on Tuesday. Law enforcement officials said Gliedman, who is reportedly pregnant, is the daughter of Paul Gliedman, director of radiation oncology at Beth Israel Hospital in Brooklyn.

(Reuters)