(CBS) — Dramatic surveillance video shows a teen pull out a gun on a shop owner, and what happened next helped put an end to a suburban crime spree, police said.

CBS 2’s Mike Parker reports two 16-year-old boys are now facing robbery charges.

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Surveillance video shows a teen in a blue hooded sweatshirt enter the Nuevo Mexico grocery store in Des Plaines last Saturday. He goes to the counter and lays down the candy bar, then pulls a gun.

But the owner takes a few steps then pulls his own gun. The suspect takes one look then flees the store. The owner fires three shots, but does not hit him.

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Outside the store, witnesses gave police a description of the getaway car driven by an accomplice. Two hours later, the car was spotted outside a nearby beauty salon.

Police say the gunman was inside getting a haircut. Both teens were arrested and later admitted sticking up a Dunkin’ Donuts, where one of the two walked with a limp.

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“He had a shotgun down his pants leg, that’s why he was walking with a limp,” said Des Plaines Police Chief Bill Kushner. “They’re not strangers by any stretch of the imagination.”