HARRISBURG, Pa. (AP) — A man who gave prosecutors an envelope containing feces is heading to prison for an armed robbery in Pennsylvania.

The Dauphin County District Attorney's Office says 34-year-old Rasheem Drummond was sentenced to 7 ½ to 15 years in prison Wednesday after he pulled a gun and robbed someone who thought they were meeting for a date in Harrisburg.

Prosecutors say Drummond threatened to shoot the victim before stealing money and a cellphone in January 2017.

He was convicted in April of robbery and carrying a firearm without a license.

The district attorney's office says Drummond is facing a separate aggravated harassment charge in connection with the envelope that he gave prosecutors May 1.

Drummond told prosecutors that the envelope contained information related to his case.