"Remember Eric . . . our judgment time, the final Yom Kippur has been given. You are a liar, you're a Lucifer, you're a pig . . . you're an abomination, you receive my bullets in your office, remember they will be placed in your heads. You and your children are Lucifer's abominations."
The incident received wide attention, coming shortly after Congress had passed President Obama's health-care bill.
LeBoon, of the city's Mayfair neighborhood, was later found to be incompetent to stand trial and ordered to undergo psychiatric treatment.
LeBoon had previously been diagnosed with "multiple personality disorder" and he told the FBI he was "the son of the God of Enoch," an apparent reference to the figure from Genesis who was the father of Methuselah and the great-grandfather of Noah.
LeBoon was charged on Tuesday in a two-count information with threatening an official of the United States and with transmitting in interstate commerce a threatening communication, said U.S. Attorney Zane David Memeger.
When charges are made in an information, it usually indicates that a plea agreement is in the works.
Contact staff writer Sam Woodat 215-854-2796 or samwood@phillynews.com.