Sheriff Ed Gonzalez has declined to speculate on what prompted the shooting, describing it as “totally unprovoked.”
The sheriff’s office has asked people who live nearby to review their surveillance videos.
Lee Merritt, a national civil rights attorney with an office in Dallas, and New-York-based activist and writer Shaun King have offered a $35,000 reward for a tip that would lead to an arrest.
Merritt said Wednesday that he understands his and King’s high profiles as activists mean they will reach a lot of people with their appeal. Merritt said they will pass on any leads to the sheriff’s department.
A distraught Washington told KTRK-TV from her hospital bed that the gunman sped up after firing into her car, only to pull in front and slow down before firing again. “He intentionally killed my child for no reason,” she said. “He didn’t even know her, he didn’t know who she was.”
Gonzalez said the shooting occurred on a service road as the family was heading to a store.
The gunman was described as a white bearded man in his 40s wearing a red hoodie.
Jazmine’s father, Christopher Cevilla, said his daughter was a loving and caring girl who was “very smart in school.”
The Sheldon Independent School District said in a statement that Jazmine was a second-grader at Monahan Elementary in Houston. The school district said additional counselors will be at the elementary when students return on Tuesday. The district asked parents to tell their children about Jazmine’s death, Atlanta Black Star