Dallas police have posted surveillance video of a man who carjacked a woman and her baby after shoplifting at Walmart.
Investigators said they hope someone who sees the surveillance footage will recognize the man based on his mannerisms.
Police said the man stole a T-shirt from the Walmart near Interstate 30 and Cockrell Hill Road on Sunday afternoon and then jumped into the victim's car at a nearby Starbucks while police were chasing him.
The man didn't realize Kari Kimbler and her 15-month-old daughter were sitting inside the vehicle, police said. Kimbler said her husband had gone into the Starbucks to get a drink.
"I thought we were dead," Kimbler said. "I thought he was going to take us somewhere and dump us off or kill us. I had no idea what was going to happen."
Kimbler said the man drove erratically, even going the wrong way on Cockrell Hill Road. She said she began to hit the man when he refused to let them out of the vehicle.
"Then momma bear kicked, and I all could think was, 'I've got to protect my baby with all that I have,' and it came out, and I just beat the living daylights out of him as hard as I could -- in his head, just punching in his head, and she was screaming too," Kimbler said.
After a few minutes, he pulled over and let them out.
Dallas police described man as an approximately 5-foot-9-inch tall Latino man in his early 30s who weighs about 185 pounds with a bald head and sleeves of tattoos on both arms.
He was last seen wearing a gray Texas Longhorn hat, khaki shorts and a dark-colored shirt.
Anyone with information is asked to call Detective Scoggins in the Southwest Investigative Unit at 214-670-7471.
NBC 5's Amanda Guerra and Randy McIlwain contributed to this report.