Police say 53-year-old John Kochis was involved in a billing dispute with a Texas based department store chain last year.
His bill was mailed to the home office in November with the words, "Beware: Anthrax" written on the envelope.
Police say tests on the letter and its contents came back negative. But authorities initially treated the case as anything but a hoax.
Police say Kochis could have been charged with a federal offense. He faces up to 10 years in prison if he's convicted.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or email@example.com.