The man in the 2017 shooting survived.
Jazmine Barnes was shot and killed on Sunday near a Walmart along the east Beltway and Wallisville Road.
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Woman says man intentionally killed daughter outside Walmart
She was inside her family's vehicle with her mother and siblings.
Jazmine's mother, 30-year-old LaPorsha Washington, said she was taking her daughters to the store to get coffee, when investigators say someone in a red, 4-door pickup truck pulled alongside them and fired.
Jazmine died at the scene. Her mother was hospitalized with injuries.
The shooter is described as a white man in his 40s, with a beard. He was wearing a red hooded sweatshirt. His motive is unknown.
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$35,000 reward offered for 7-year-old girl's killer
Now some activists say a similar, unprovoked incident happened to a man named A'Vonta Williams a little more than a year ago.
Williams was reportedly shot by a white man in a pickup truck while driving near that same Walmart on Wallisville.
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Activists say they don't believe the two shootings are a coincidence.
Journalist Shaun King and civil rights attorney Lee Merritt have come together to offer a $35,000 reward for Jazmine's killer.
Activists plan to hold a Justice for Jazmine community rally in the Walmart parking lot on Saturday at noon.
If you have any information about the shooting, call the Harris County Sheriff's Office or Crime Stoppers at 713-222-TIPS.
You can also make an anonymous tip online at www.Crime-Stoppers.org.