EVANSTON (CBS) — Police have released new information they hope will help catch the man who robbed an Evanston jewelry story on Tuesday.

A surveillance photo shows the suspect, wearing a black jacket, light-colored cap and sunglasses. The suspect tied up a jewelry store employee during the armed robbery at Diadem Jewelers, 1613 Sherman Ave.

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The victim told police he had opened the store for the day when the robber entered, took out a handgun and announced a robbery.

The robber then tied up the clerk’s hands with flexible plastic bindings, and took jewelry from the display cases. He stashed the jewelry away in a gym bag and backpack, then fled through the back door and ran off, police said.

A short time afterward, a passerby looked into the store and saw the clerk still tied up. That passerby called police.

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