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Lyndell Mays and Dominic Miller were also charged with and several weapons counts soon after the Feb. 14 shooting at a parade attended by an estimated 1 million people as Kansas City celebrated the Chiefs' second straight Super Bowl win. Two juveniles are also in custody, and three other men face , accused of illegal purchase of high-powered rifles and guns with extended magazines, including weapons used at the rally.

Jackson County Prosecuting Attorney Jean Peters Baker said the investigation has reached an important milestone.

“Everyone we’ve identified who discharged a firearm in response to the verbal altercation detailed here has been taken into custody,� she said in a statement.

Though all of the suspected shooters are accounted for, Baker said additional charges are expected.

Police and prosecutors have said the gunfire broke out when one group of people confronted another for staring at them. Authorities have said a bullet from Miller’s gun killed , who was in a nearby crowd of people watching the rally. She was a mother of two and the host of a local radio program called “Taste of Tejano.� The people injured range in age from 8 to 47, police said.

The latest man charged and two others approached someone in the other group, and an argument broke out, according to a probable cause statement. When someone else pulled out a gun, the man pulled out his own weapon, the document stated. Surveillance video showed him appearing to shoot several times.

The man's social media postings showed him wearing the same distinctive backpack seen in the surveillance video, and his phone data showed the device was in the area of the shooting when it happened, according to Baker and the probable cause statement.

Court documents unsealed earlier this month said 12 people brandished firearms and at least six people fired weapons at the rally. The guns found at the scene included at least two AR-style rifles, court documents said. U.S. Attorney Teresa Moore has said at least two of the guns recovered from the scene were illegally purchased.