After almost a week of investigating, the Harris County Sheriff's Office announced the charge early Sunday morning against 20-year-old Eric Black Jr.
Jazmine was in a auto with her family as they drove through Houston when she was shot in the head on December 30.
The Sheldon Independent School District said in a statement that Jazmine was a second-grader at Monahan Elementary in Houston.
Shortly after Jazmine was killed, both the Harris County Sheriff's Office and Jazmine's mother said the shooting seemed unprovoked. The post did not elaborate, and the sheriff's office did not immediately respond to phone messages.
The shooting prompted widespread outrage, with hundreds of people gathering at a rally to demand "Justice for Jazmine". Prosecutors said he was driving the vehicle that pulled alongside the Barnes family auto and that someone else shot into the auto.
Police have said they are pursuing various leads after a composite sketch of the suspect was released on Thursday.
The source told police that the suspects had mistaken the auto Jazmine was riding in for somebody else's and that it was shot at "by mistake".
Black says he thought it was a vehicle he had seen the night before, he didn't realize who was inside.
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"I have no tint on my windows or anything so you can see there is a mother - a black mother - with daughters, attractive children", Washington told CNN while police were searching for a suspect.
Jazmine's family and activists had said the shooting was similar to an unsolved incident in the area in 2017 in which a gunman described as white shot into a vehicle carrying at least two black people.
The anonymous tipster told authorities that Black and another person, identified in court as "L.W.", had mistaken Jazmine's family's vehicle for another vehicle.
Jazmine's mother, LaPorsha Washington, had tried to drive to a hospital after the shooting, but one of her front tyres had been shot out.
"That could have been anyone in my family", Hopkins said, reiterating one of his tweets in which he said that he thought of his own 5-year-old daughter when he saw a picture of Jazmine.
Washington, 30, was shot in the arm, while Jazmine's 6-year-old sister was hit by shattered glass.
It appears that man was an innocent bystander who fled, actually fearing for his life as well.
She said Jazmine would have celebrated her birthday next month.
The suspects "were complete strangers to this family", Merritt said. "I can get up in the morning". People held up balloons and stuffed animals, as well as signs that said "Justice for Jazmine". Her funeral is at noon. "We need to tighten up and verify information on this case", he said.