The FBI is investigating a Chicago connection to a letter claiming to be from Osama bin Laden.
Twenty-five copies of the letter, postmarked from Chicago, were sent to locations around the country.
The so-called bin Laden wrote he has 160 nuclear bombs that will be detonated unless certain unidentified people responsible for war crimes are put on trial.
The letter goes on to say the trials must be televised live and done "American Idol style," where viewers could vote on guilt or innocence.
While the bureau believes the whole thing is a hoax, the writer could still be in a lot of trouble.
“We plan to hopefully identify who sent these mailings and charge them federally for mailing these threatening hoax letters, and the statutes allow for anywhere from five to 10 years for each hoax letter that was mailed,” Angela Byers, of the Chicago FBI, said.
The letter was sent to police and fire departments, schools and private businesses including a Chicago detective agency.