In January, police said a feud resulted in the drive-by shooting that wounded five people about 30 minutes after a parade had passed by on Martin Luther King Jr. Day. The next month, four people were shot following an argument in the French Quarter during the last weekend of partying before Mardi Gras. Arrests were made in both cases.
Police vowed to solve Sunday's shooting, too. Serpas said it wasn't clear if particular people in the second line were targeted, or if the shots were fired at random.
"We'll get them. We have good resources in this neighborhood," Serpas said.
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Contributing to this report were Associated Press writers Michael Kunzelman and Kevin McGill in New Orleans and AP Radio reporter Jackie Quinn in Washington.
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