A Pennsylvania man who briefly served in the U.S. Army faces charges of attempting to join the terrorist militant group Hezbollah in an effort to “kill Jews,” the Department of Justice (DOJ) said.

Jack Danaher Molloy, 24, was indicted by a federal grand jury in Pittsburgh Thursday for allegedly traveling to Lebanon and Syria last year to join the Iran-backed group despite knowing it is a U.S.-designated terrorist organization.

According to an affidavit, Molloy, a dual U.S. and Irish citizen who previously served on active duty status in the Army, attempted to join the terrorist organization multiple times.

Court documents also revealed he told a family member his “master plan was to join Hezbollah and kill Jews.”

Jack Danaher Molloy faces a maximum penalty of 28 years in prison. (Department of Justice)

While Molloy was living in Upper St. Clair, Pennsylvania, the DOJ said, he also allegedly visited a website detailing the possible incarceration location of Robert Bowers, who carried out the Pittsburgh Tree of Life Synagogue shooting that killed 11 Jews.

If convicted, Molloy faces a maximum penalty of 20 years in prison for a material support charge. For the false statement charges, he faces a maximum penalty of eight years in prison, a $250,000 fine or both.