A Casper man was sentenced on April 3 to over a year in federal prison for making antisemitic threats against the Anti-Defamation League. U.S. Attorney Darin Smith announced that Derek A. Fulfer, age 31, received a sentence of 12 months and one day in prison, followed by two years of supervised release. The sentencing took place before U.S. District Judge Scott W. Skavdahl.
According to prosecutors, the case highlights law enforcement’s response to hate crimes targeting religious communities.
Federal officials said Fulfer made four phone calls on March 5, 2025, to ADL offices in Colorado and Texas. When his calls were not answered, he left voicemails containing antisemitic slurs and violent threats directed at Jewish individuals. Staff members at the ADL reported the messages immediately to federal authorities.
The FBI investigated and identified Fulfer as the caller responsible for the threats. When questioned by agents, Fulfer admitted making the calls but claimed his statements were protected speech under free expression laws. He was charged with transmitting threats in interstate commerce under federal law and later pleaded guilty before Judge Skavdahl on January 8, 2026.
U.S. Attorney Darin Smith said: “Jewish Americans have every right — not as a courtesy, not as a privilege, but as Americans — to live, to worship, and to serve their communities free from threats of violence.
Let there be no confusion about what happened here. This was not political commentary. This was not satire. This was not protected speech. This was a calculated attempt to terrorize people because of their faith. And it failed.
To those who would threaten the Jewish community — or any community of faith — in Wyoming or anywhere else in this country: we see you, we will find you, and we will prosecute you to the fullest extent of federal law.
Not on my watch. Not in this district. Not in America.”
