A Glenwillard man is facing up to 20 years behind bars after being indicted on child pornography charges.
Prosecutors say they have additional concerns about 20-year-old Aidan Harding.
Federal prosecutors say Harding had in his possession videos showing sexual abuse of children.
They say he had also targeted Pittsburgh's Jewish community with antisemitic fliers.
He was also talking about political and revenge driven mass casualty events, including references to Robert Bowers, the gunman convicted of killing 11 at Tree of Life Synagogue.
Prosecutors say Harding was in possession of more than 20 firearms.