Lawton_An inmate has pleaded guilty in a case in which he mailed white power to the District Attorney in Comanche County.
The U.S. Attorney for the Western District of Oklahoma says 41-year-old Lloyd Alan Cooper pleaded guilty this week to conveying a false hoax threat to the Comanche County District Attorney's office.
Cooper mailed a letter to the courthouse back in November, containing a white powder and a note written in red pen saying, "God save us".
The courthouse was locked down for hours after the letter was opened. The powder was actually a common pain reliever.
Cooper faces up to five years in federal prison and up to $250,000 in fines. He could also be required to pay restitution.