NEW ORLEANS — A fifth person has been arrested after a Biloxi Police officer was killed in an ambush-style shooting Sunday night.
According to Harrison County Jail records, 18-year-old Andre Sullivan was booked on charges of accessory after the fact to capital murder late Thursday night.
CBS News affiliate WLOX reports that Sullivan is being held at the jail on a $500,000 bond.
Darian Atkinson, 19, is charged with capital murder in the death of 57-year-old Biloxi Police Patrolman Robert McKeithen on Sunday.
Atkinson was arrested Monday in Wiggins, about 40 miles north of the crime scene. He smiled and hummed as he was led into a courtroom Wednesday at the Harrison County Jail in Gulfport, where he made an initial appearance on the capital murder charge.
His 21-year-old brother, Davian Atkinson, and two other men, Dalentez Brice, 20, and Joshua Kovach, 21, have been charged with accessory after the fact in the killing.
Investigators say they believe Davian Atkins drove his brother to Wiggins and let him make phone calls. Davian Atkinson told a judge Wednesday he would hire an attorney, but it was not immediately clear whether he had done so by Thursday.
Brice and Kovach were arrested Wednesday and were being held without bond. It was also not immediately known whether either has a lawyer who could be reached for comment.
Darian Atkinson's mother, Pamela Broger, told The Associated Press on Tuesday that her son had been having mental health problems in recent months. She said she had to call police to her home because of him.
Darian Atkinson smiled and hummed as he was led into a courtroom Wednesday at the Harrison County Jail in Gulfport, where he made an initial appearance on the capital murder charge. He was wearing a knee-length sleeveless vest the sheriff said is for inmates considered suicide risks.
Darian Atkinson told Justice Court Judge Brandon Ladner he didn't know if he would need a public defender because he had not been able to call his family.
McKeithen, 57, had worked for Biloxi Police Department for almost 24 years.
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A sworn statement filed by a sheriff's deputy, Nickolas Pennington, said surveillance video at the police station showed a man walking up behind McKeithen and shooting him several times, according to WLOX-TV . The video then showed the shooter running through the parking lot.
McKeithen's wife, Pamela McKeithen, said in a video released by the city of Biloxi that her husband loved being a police officer.
"Besides his family, that was his life," she said. "He took meticulous care of his uniforms, like 'Don't touch it. I've got this.' He was going to make sure everything is in its place on his uniform. He would iron it every day, shine his boots."
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The Associated Press contributed to this report.