But thanks to an earlier tip from an anonymous source, police learned Black might have been involved in the December 30 drive-by shooting of Jazmine, who was shot in the head while riding in a vehicle with her three sisters and their mother.
Eric Black was arrested after Texas Police looked into a tip they'd received from an informant who'd seen the composite sketch making the rounds. The station is reporting that "the alleged shooter is black, not white, and also that the shooting may have been gang-related". In an interview with CNN's Brooke Baldwin, Hopkins said it was to help the family with funeral costs, hospital bills for Jazmine's mother or other family needs.
Prosecutors said a confidential source had contacted the sheriff by email and told him the killers had "shot the auto by mistake", thinking the vehicle Jazmine was in was someone else's that they had seen earlier in the night.
The Harris County Sheriff's Office in Houston, which is leading the investigation, said it's already working with the FBI and other federal agencies.
In a press conference Sunday afternoon, Gonzalez said there was indeed a red truck at the stoplight when shots rang out, but said investigators now believe the person or people in the truck were nothing more than witnesses.
The shooting prompted widespread outrage, with hundreds of people gathering at a rally to demand "Justice for Jazmine".
The case attracted nationwide attention.
More than 2,800 people have donated to a GoFundMe set up for Jazmine's funeral expenses and family.
Police had earlier described the suspect as a bearded white male in his 40s.
In an emotional speech, Jazmine's aunt, Sharonica Watt, asked her niece's killer why he took the little girl's life. Authorities have not released information on the suspected shooter, who Black said opened fire from the passenger seat.
"We are out here to support her because being a family and to lose your daughter as in a situation like this is a tragedy", said one attendee.
Prosecutors and a lawyer for Jazmine's family, S. Lee Merritt, named the second suspect as Larry Woodruffe, 24, who is also black and was at the Harris County jail on Sunday on a drug possession charge. We know that they had come to a traffic signal near the Walmart, both this red truck, the driver, and LaPorcha and the family. Gonzalez would not clarify Black's role in the killing.
Washington, 30, was shot in the arm, while Jazmine's 6-year-old sister was hit by shattered glass.
While it may be hard to understand the discrepancy, "it is imaginable that witnesses confused a fleeing bystander for the actual shooter", Merritt tweeted.
On Sunday, he also wrote on Twitter: "When Jazmine Barnes was killed I pledged to find who killed her".
Services for Jazmine are scheduled to begin at 10 a.m. Tuesday with a viewing at Green House International Church.