SANTA MONICA ( — Police were asking for the public’s help Friday in locating a former U.S. Marine who allegedly carjacked a Mercedes following a test drive in Santa Monica.

Last November, 45-year-old David Guyer entered the Simonson Mercedes dealership at 1626 Wilshire Blvd. and requested to test drive a car, according to Santa Monica Police Lt. Richard Lewis.

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Guyer provided a salesperson an Arizona driver’s license, which was then photocopied and retained for the dealership’s records, Lewis said.

During the test drive, Guyer stopped the vehicle, told the salesperson he had a gun, and ordered the salesperson out of the vehicle. He then fled the scene in the vehicle, according to Lewis.

The car was recovered six days later in Hermosa Beach. A felony arrest warrant was issued for Guyer on suspicion of carjacking on March 19.

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Detective Chad Goodwin said because of Guyer’s record, authorities are concerned for the public’s safety.

“We’ve learned that he is a former U.S. Marine and through some of his social media, he is proficient in martial arts,” Goodwin said. “That along with use of the handgun and this carjacking, we believe he could be armed and dangerous.”

Guyer is described as a male white adult, 6’02″ tall, 190 pounds, brown hair and green eyes with a closely trimmed goatee. He has previously lived in Venice and may be in the West Los Angeles or South Bay area, according to Lewis.

Authorities say the FBI is also offering a reward of up to $5,000 for information leading to Guyer’s arrest.

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Anyone with information is asked to call Sgt. Tom McLaughlin at (310) 458-8430 or the Santa Monica Police Department at (310) 458-8495.