The killing of Jazmine Barnes took on racial overtones for several reasons.
She was in the car with her mother and sisters near a Houston Walmart store. When a white man in a red pick up truck opened fire, according to witnesses. Killing her.
It was in the same area where two other black people were shot in their car in 2017. And some community leaders believed the incidents were connected and racially motivated.
A composite sketch of a suspect was released. But now, the Harris County Sheriff's Department is tweeting the investigation has taken a new direction.
Some local media are reporting that the person they are questioning does not match the description of the person in the composite.
The arrest comes just hours after 1,000 people packed an emotional "Justice for Jazmine" rally in Houston.
And in today's opening game of the NFL playoff season, Houston Texans wide receiver DeAndre Hopkins took the field in Jazmine's honor.
Earlier this week the sheriff refused to speculate on a motive for the shooting. Saying until a person is in custody they will not know for certain.