RAPID CITY, S.D. (AP) — A 25-year-old Rapid City man has pleaded guilty to using a pellet gun to rob a casino.

The Rapid City Journal reports that Billy Robertson pleaded guilty on Monday to first-degree robbery of the King of Hearts Casino.

Robertson told Circuit Judge Jeff Davis that he was broke and his rent was due when he robbed the casino in July.

He is being held without bond in the Pennington County Jail.