SAN JOSE — A suspected drunken driver was already wanted on a misdemeanor DUI warrant when she caused a head-on crash Christmas morning that killed her and a teen boy riding in another car with his family, authorities said.

Before she got behind the wheel for that fateful drive, she was reportedly seen having a couple of drinks at a nearby bar. She didn’t make it a half-mile before she careened downhill over the center median separating the wide and fast-moving traffic on Capitol Expressway.

On Wednesday, the coroner’s office formally identified 14-year-old San Jose resident Andrew Nguyen as the second victim of the collision. He was riding with his parents in an eastbound silver 2004 Lexus on Capitol near Snell Avenue when around 12:28 a.m., an oncoming 2012 Chevy Malibu reportedly crossed over into their lanes and hit them head-on, police said.

Andrew, who was riding in the rear passenger-side seat behind his mother, was gravely injured in the crash and was rushed to the hospital, where he died from his injuries. The driver of the Malibu, 25-year-old Jessica Marie Zamora, also died at the hospital not long after the collision.

Andrew’s parents were also taken to the hospital where they were treated for minor injuries.

A family friend said Andrew, who was a freshman at Evergreen Valley High School, was the only child of loving parents who are devastated in the wake of the crash. She described Andrew as having a lot of friends — “he was not shy” — and as someone who often walked to his nearby library.

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Chris Funk, the superintendent of the East Side Union High School District, offered sympathy to Andrew’s family and his school community, saying grief counselors will be on hand at Evergreen Valley when students return to classes Tuesday.

“Words cannot properly explain the sadness and devastation the Nguyen family is going through,” Funk said. “Our condolences go out to the family.”

In the hours after the tragic crash, police announced that “alcohol influence may be a factor associated to the female driver,” a revelation that shocked Zamora’s family and friends. A bartender at the nearby El Rancho Sports Bar — about a half-mile from the crash site — said Zamora had two drinks at the bar Saturday night.

San Jose police confirmed Wednesday that Zamora was the subject of an outstanding no-bail warrant for misdemeanor DUI, which meant that she would have been arrested the next time she came into contact with law enforcement. Details about the case that elicited the warrant were not immediately available.

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At vigils held Sunday and Monday night, flowers, candles, balloons, and signs mourned the deaths of Zamora, mother of a 5-year-old daughter, and Nguyen, even though at the time he had not been publicly identified. The on-site memorials also drew critics when some well-wishers left behind containers of alcohol, which while not an uncommon tradition, was decried on social media as insensitive given the circumstances of the crash.

The deaths marked the 49th and 50th traffic fatalities in San Jose in 2016. There were 60 such deaths recorded in 2015.

Anyone with information about the collision can contact traffic Detective Kevin McMillin at 408-277-4654.

Staff writers Eric Kurhi and Sharon Noguchi contributed to this report.