Donald Spitz is an American Pentecostal minister and anti-abortion extremist who serves as the spokesperson and webmaster for the Army of God, an anti-abortion Christian terrorist organization that has been identified as an active underground terrorist organization by the Department of Justice and Department of Homeland Security's joint Terrorism Knowledge Base.

The grand juries were held in Alexandria, Virginia and, in Philadelphia during separate investigations into Hill and Clayton Waagner, a man who sent hundreds of anthrax scare letters to abortion providers in 2001.

[3] After John Salvi attacked two reproductive health clinics in Massachusetts, he drove to Norfolk, Virginia where Spitz lived at the time.

It was reported by the Boston Globe, that at the time of his arrest in Norfolk, Salvi had Spitz's name and unlisted phone number in his possession.

[4] Spitz gained attention in 2001 with his support for Waagner, who was one of the FBI's Ten Most Wanted Fugitives,[13] who sent hundreds of anthrax letters to abortion clinics throughout the United States.

[17] In 1994, the FBI suspected that he and other anti-abortion figures might be developing "a conspiracy that endeavors to achieve political or social change through activities that involve force or violence.

"[1][18] Spitz has published prison writings of fellow extremists including Hill, Waagner, Eric Rudolph,[1][19][20] Shelley Shannon, and Michael Bray, on Army of God's website.