A Casper resident pleaded guilty in federal court on Thursday to one count of being a felon in possession of a firearm, according to court records.

Sean Mapp, who was 34 at the time of his arrest, entered the plea before Chief U.S. District Court Judge Nancy Freudenthal, who scheduled his sentencing for May 26 in Cheyenne.

The case started in September after Mapp was arrested at a convenience store parking lot on East Second Street. A Casper police officer saw Mapp, knew there was a warrant out for his arrest, and saw him trying to pass a gun to a bystander.

Prosecutors discovered Mapp had at least three prior felony convictions.

He pleaded not guilty in Natrona County District Court to one felony charge of a felon in possession of a firearm, and misdemeanor counts of interference with a peace officer and carrying a concealed weapon.
But a federal grand jury indicted him in November on the one count of being a felon in possession of a firearm, which is punishable under the federal system by up to 10 years imprisonment, up to a $250,000 fine, and up to three years of probation.