AUBURN, Calif. (CBS13) — A Placer County man faces life in prison after he was convicted of carrying out a terrifying crime spree in 2010.

Dillon James McMahon, 22, of Auburn was found guilty of carjacking and kidnapping for one incident on April 16 and kidnapping for robbery while using a firearm and carjacking for another incident two days later.

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In the first incident, McMahon approached a woman at a bank in Auburn and asked for directions to the Grass Valley area. While she was giving him directions, he told her he had a gun and got into the driver’s seat of the car and ordered her to drive to a remote location on the outskirts of town. They drove to a secluded alley where McMahon pulled out a gun and pointed it at her head and told her to get out.

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In the second incident, a woman was getting out of her car at Auburn Regional Park to attend an exercise class when McMahon asked for change. When she went to get her purse, he held a broken bottle to her neck and ordered her away from the car. He and an accomplice got in and drove off.

McMahon was already serving an 11 year, four month sentence for savagely beating an elderly man with a tire iron at the man’s Penn Valley home.

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The accomplice in the second incident, John Adrian, is serving a year sentence for his involvement in the crime.