Pass Christian police said they believe Malcolm Dedeaux Jr., embroiled in a feud, and other men sought out Charles Johnson after a Mardi Gras parade and they shot him in the midst of a crowd.
Isaiah "Winky" Lee Major III and Carlos "Los" Bates died and Johnson and three others were wounded Feb. 7 after the St. Paul Carnival Association parade.
Dedeaux, 23, and three other men face charges of second-degree murder and aggravated assault. They are his cousin Donald Dedeaux, 23; Jermaine Ratcliff, 26; and Ratcliff's half-brother Jessie Lee Williams Jr., 23.
Police have said Major, 43, of Bay St. Louis, and Bates, 29, of Gulfport, were bystanders hit by stray bullets.
An affidavit filed in Harrison County Justice Court shows what Pass police believe happened Feb. 7 as a block party unfolded just north of the parade route on Davis Avenue.
Malcolm Dedeaux had been feuding with Johnson and another man since January, the document said.
Police believe Malcolm Dedeaux and four others had learned Johnson was in front of the Pass post office and they walked south to find him.
When Malcolm Dedeaux was about 10 feet from Johnson, he began shooting, and so did Donald Dedeaux, Ratcliff and Williams, according to the document.
Johnson, hit three times, returned fire.
The affidavit said one of the men who was with Malcolm Dedeaux's group was among those wounded.
SunHerald.com is working on an updated report.