HOUSTON - Authorities released new information Thursday morning in the arrest of a 16-year-old accused of stealing a car with a 7-month-old baby in the backseat on New Year’s Day.

The Amber Alert suspect, whose name is not being released because he’s a juvenile, was taken into custody around 4 p.m. Wednesday at Nimitz High School in Northeast Harris County, where he is a student.

Constable Mark Herman said Thursday that juvenile suspect has been “100% uncooperative” and is refusing to answer questions, and his mother isn’t cooperating either.

Constable Herman said tips poured in after his office released surveillance images and still photogs of the suspect. He thinks the teen had no idea 7-month-old Allison King was in the backseat when he allegedly stole the car from a gas station parking lot on Aldine Westfield at Treaschwig around 7:25 p.m. on January 1 after the mom had gone inside.

Surveillance video from a home near Marvell Dr. and Aiken Ln, nearly 6 miles away, shows the baby being dropped off in an alley just a few minutes later. Constable Herman says more than 120 patrol units searched over 40 square miles before a Precinct 4 deputy found the infant around 9:30 p.m.

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On Thursday, the Constable told reporters he has no doubt they’ve arrested the right guy.

“I’ve reviewed this entire deal,” said Constable Herman. “This kid is going to be found guilty in whatever court he’s in. We have people that identified him, identified his jacket. Folks at the school said ‘Oh, that’s such and such’, so we look forward to that day in court for this individual.”

Constable Hermann says he’s still looking for that stolen black Nissan sedan, adding his deputies were out patrolling Thursday morning trying to spot it.

He also says deputies spoke to King’s mother on Wednesday following the arrests, describing her as “relieved” and adding the baby is doing well.

The suspect is in a juvenile detention center charged with Theft of a Motor Vehicle and Child Endangerment. Constable Herman says he thinks that juvenile could be linked to other crimes in the area but wouldn’t elaborate, citing the ongoing investigation.