The Latest: Officer helped motorist before he was killed

The Latest on the killing of a Mississippi police officer (all times local):

12:40 p.m.

Less than hour before a Mississippi police officer was shot to death, he helped a driver who had wrecked after falling asleep at the wheel.

The driver, 22-year-old Damon Corrigan, tells the Sun Herald that he crashed Sunday night on the bridge over Biloxi Bay. He says the left side of his Ford Mustang was destroyed, and Biloxi police Patrolman Robert McKeithen (muh-KEETH-en) helped him get out of the car. Corrigan also says McKeithen accompanied him to a hospital.

Biloxi police records show McKeithen responded to the crash and returned to the police station because he had gotten a flat tire. McKeithen was shot to death outside the station.

One man is charged with capital murder and three are charged with accessory after the fact in the killing.

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8:14 a.m.

Two more people have been arrested after a Mississippi police officer was gunned down outside his police station.

Harrison County Sheriff Troy Peterson tells WLOX-TV both men were arrested Wednesday on charges of accessory after the fact in the capital murder case.

Twenty-year-old Dalentez Brice and 21-year-old Joshua Kovach are being held without bond. It wasn't immediately known whether they have lawyers who could be reached for comment.

Veteran Biloxi police Patrolman Robert McKeithen (muh-KEETH-en) was shot several times in the back Sunday in the police station parking lot.

Nineteen-year-old Darian (DEHR-uhn) Atkinson is accused of killing him.

Atkinson's 21-year-old brother, Davian Atkinson, is also charged as an accessory after the fact. Authorities say he drove his brother to Wiggins after the killing and let him make phone calls.