Police arrested a man for allegedly robbing an elderly couple after helping them load purchased items into their car in October.

Calvin Pearson, 28, address unknown, was charged with second-degree robbery.

According to reports, the robbery took place at Wal-Mart, 2801 Commerce Drive, Coralville, on Oct. 16. After Pearson helped the couple load items into their car, he allegedly got into the back seat and placed a motel key card on the male victim’s throat, pretending it was a knife. He then reportedly demanded the man’s wallet.

When the woman said he didn’t have his wallet, Pearson allegedly said, “Give me your purse or I’ll cut his throat,” according to police. The woman gave Pearson money from her purse.

After he was arrested, Pearson admitted to committing the robbery, according to reports.

Pearson was being held at Marshall County Jail on $15,000 cash-only bond Sunday afternoon.

— by Marleen Linares