Prosecutors said a witness picked out a photo of Akein Scott from a lineup. An arrest affidavit said the unidentified witness told investigators that Akein Scott was the person seen in a surveillance video that police released to the public as they searched for him. The witness also said Akein Scott was carrying a silver-and-black semi-automatic handgun at the shooting scene, according to the affidavit.
Magistrate Judge Gerard Hansen set Akein Scott's bond at $10 million — $500,000 on each of the 20 counts in the Mother's Day shooting case.
Police had been searching for Akein Scott since identifying him as a suspect Monday from the video.
Courtney Moles, whose apartment overlooks the shooting site, said Thursday that she didn't feel her safety was in jeopardy while police searched the city.
"I didn't really think he would come back. It's more personal than that," she said. "He wasn't going to that second line to make national news. He was probably settling some kind of score."
Edward Buckner, president of the Original Big 7 Social Aid and Pleasure Club, which sponsored Sunday's second-line parade, said he was ecstatic at the news of the arrests.
"That's the best thing that could ever have happened," he said.
Police publicized a $10,000 reward in the case, and investigators received tips after images from the surveillance camera were released.
Gun violence has flared at two other city celebrations this year. Five people were wounded in a drive-by shooting in January after a Martin Luther King Jr. Day parade, and four were wounded in a shooting after an argument in the French Quarter in the days leading up to Mardi Gras. Two teens were arrested in connection with the MLK Day shootings; three men were arrested and charged in the Mardi Gras shootings.
Mark Hertsgaard, a freelance writer who was shot in the leg Sunday, said in a phone interview from his home in San Francisco that he wouldn't let the violence turn him against the city.
"I love New Orleans, and I love anything that helps to heal New Orleans from this event, including bringing justice to the perpetrators," said Hertsgaard, who was stopping in the city on his way home assignment.
Hertsgaard said he still loves the people of New Orleans.
"Yes, there are pockets of idiots, and the other day one of them put a bullet in my leg," he said.
"But let's not let a few idiots tarnish the reputation of a great city that has great people in it."
Associated Press writers Chevel Johnson and Michael Kunzelman contributed to this report.