A witness told police that the vehicle that hit and killed a Grand Prairie boy had a green light, but police maintain that the light had been red for 14 seconds.
Tammy Lowe is facing charges of manslaughter and an accident involving injury/death in connection with 6-year-old John Paul Raidy's death.
According to an arrest affidavit released Friday, a witness told police that the driver had a green light. Grand Prairie police told NBC 5 later Friday that investigators believe the witness was mistaken.
"The vehicle entered the intersection on a green light but failed to see the victim and his mother, who was pushing a stroller still in the crosswalk," the witness said.
The witness continued: "The vehicle hit its brakes and observed the victim flying off the hood and land in the street."
Grand Prairie police told NBC 5 on Friday evening that investigators have video evidence that shows the light was red for 14 seconds. The affidavit does not mention that video, and police told NBC 5 that they have not released that footage.
Raidy, a first-grader at Austin Elementary, was crossing the street with his mother and sister at North Carrier Parkway and Holiday Hills Drive at 7:30 p.m. on Jan. 24 when he was hit.
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Shortly after the crash, police said the collision was so powerful that the boy landed on the hood of the car and was carried 100 yards before landing on the pavement. Investigators said then that the car briefly stopped and then drove off southbound on Carrier Parkway.
Video shows Lowe's surrender to police
Grand Prairie police released video of Lowe turning herself in at the public safety building five days after the deadly hit-and-run crash.
The video shows her waiting several minutes in the lobby before an officer invited her into an office. Minutes later, Lowe emerged in handcuffs with two officers and head to an interrogation room.
The video shows her husband sitting distraught in the lobby.
Lowe is being held in the Dallas County Jail after being transferred Friday from the Grand Prairie Jail.
Lowe's bond was lowered from $200,000 to $125,000. Her attorney said she is not expected to be released Friday because of a technicality.
NBC 5's Randy McIlwain and Amanda Guerra contributed to this report.