The gunman involved in the robbery of a Casper business is heading to prison.

Antoine Miller was sentenced to twelve-to-fourteen years in prison, after pleading guilty to one charge of aggravated robbery.

Prosecutors say in late December, Miller and his girlfriend Casey Bingemer, robbed the Emporium Adult Store on East F street in Casper.

Miller was accused of pointing a BB gun at the cashier, demanding money.

Bingemer was fired from the business earlier in the month, and the business owner recognized her on security video, based on the way she moved, and also knew that Miller was her boyfriend.

Last month, Bingemer was sentenced to nine-to-fourteen years in prison after pleading guilty to one count of conspiracy to commit aggravated robbery.