Judiciary spokesperson Asghar Jahangir told state television that the two judges had long been involved in "national security cases, including espionage and terrorism."
Georges Ibrahim Abdallah was sentenced to life in 1987 for his role in the 1982 murders in Paris of US military attache Charles Ray and Israeli diplomat Yacov Barsimantov.
The Mannheim District Court in southwestern Germany is currently host to one of the most shocking murder and kidnapping trials in recent memory.
The accusations against Agüero stem from forensic exams showing the babies received lethal doses of potassium, which is fatal, especially for hours-old infants.
The attacker entered the home under the guise that he was going to be doing repairs in her home.
Victim was stabbed 14 times while protecting her 5-year-old daughter; suspect's accomplice remains at large.
"We had an obligation to act quickly and arrest the suspect in this heinous murder."
Prosecutors have indicted Guatemalan citizen Sebastian Zapeta-Calil, 33, for the alleged murder of an unknown woman on December 22, according to NBC News.
If convicted, he faces a maximum sentence of life in prison without the possibility of parole.
Mangione, 26, would face a mandatory sentence of life in prison without the possibility of parole if convicted on all counts.