Anthony Graziano, 24, faces nine counts of attempted murder along with other charges for 2012 attacks on synagogues and a rabbi's home in New Jersey's Bergen County.
James Medina, a convert to Islam, was recorded telling an FBI informant he was prepared to kill innocent women and children. His family and attorney say he is mentally ill.
Ahmed Ferhani, who is serving a 10-year prison sentence, and his lawyers say Attica guards have taunted the Algerian immigrant over his terror conviction.