During the search, FBI agents discovered approximately 40 human skulls, spinal cords, femurs and hip bones in Nott's apartment.
The case is being investigated by the FBI, with the Eastern District of Pennsylvania and the National Security Division's Counterterrorism Section leading the prosecution.
Omar Alkattoul, 19, was arrested in November, shortly after many Jewish institutions in New Jersey, including synagogues, briefly shuttered amid warnings from the FBI about a "broad threat."
Dr. Gal Luft insists the charges made against him are entirely false and issued new allegations of corruption against US President Joe Biden.
Seann Pietila, 19, discussed his plans to stage a mass shooting in private messages on Instagram, according to documents filed last week.
Seann Pielia, 19, now faces charges of transmitting a communication containing a threat to injure another individual.
Neither the name of the affected software nor the details of the alleged vulnerability were identified.