On Thursday night, 6-year-old John Raidy was walking a few paces ahead of his mother and younger sister as they returned home from buying candy. He stepped onto North Carrier Parkway about the same time a small black SUV was running a red light.
"He got a few steps out in front of me and the car honked at us," John's mother, Lauren Raidy-Brooks told WFAA. "He ran the red light, and all I heard was the sound and then I saw my son."
The first-grader was thrown onto the hood of the car, which drove another hundred yards before coming to a stop. Raidy-Brooks thought the driver must have realized what she'd done and was stopping to help the dying boy, but she paused only long enough for the body to roll to the pavement. He was taken to an Arlington hospital, where he was pronounced dead.
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Grand Prairie police spent the next six days trying to find leads. About the only evidence they had was a grainy video showing the car, which they concluded was a Toyota Yaris, making a right turn shortly before the accident.
Meanwhile, the family pleaded with the driver to "grow a conscience" and come forward.
Grand Prairie police say that happened today when Tammy Lowe, a middle-school history teacher at Grand Prairie's Adams Middle School, walked into the police station and surrendered.
Lowe, 53, is being held in Dallas County jail on a charge of failure to stop and render aid and for injury to a child. Her bond is $100,000. Police said at a press conference that, shortly before turning herself in, she left a note at Adams Middle School announcing her resignation.