Enrique Marquez Jr., the man accused of arming the San Bernardino, Calif., shooters, pleaded not guilty on Wednesday. Marquez, 24, is charged with purchasing weapons for Syed Rizwan Farook and his wife Tashfeen Malik. Authorities believe Farook and Malik used the weapons Marquez acquired to carry out an attack that left 14 dead and 22 wounded.

Though Marquez played no part in the actual San Bernardino attack, authorities believe he knew the suspects planned the assault but chose not to reveal their plot, according to Buzzfeed.

Marquez appeared for arraignment before Magistrate Judge Sheri Pym. Marquez gave short yes or no responses before entering his "not guilty" plea.

Marquez met Farook 10 years ago and the two became friends. In 2011 Marquez allegedly spent around $1,500 purchasing rifles for Farook. Marquez also allegedly aided Farook by purchasing smokeless powder used to make bombs. The bombs Farook made did not explode.

Marquez stated that he distanced himself from Farook after learning of his plot, according to the Los Angeles Times.

Marquez also faces charges for marriage fraud. He married  an extended member of Farook's family, and reports indicate that Farook lied on marriage paperwork, claiming that he lived with the woman in question so she could remain in the US.

If found guilty Marquez could face up to 50 years in prison, according to CBS News.