A Newbury Park High School student injured this week in a Malibu car crash that killed a classmate remained in critical condition Thursday at UCLA Medical Center, authorities said.

The Camarillo girl, a 17-year-old senior, suffered a skull fracture when the car she was riding in with four male classmates overturned on the Pacific Coast Highway near Encinal Canyon Road late Tuesday. She was in critical but stable condition Thursday, said Sgt. Philip Brooks of the Los Angeles County Sheriff's Department's Lost Hills Station.

Cody James Murphy, a popular Newbury Park High football player who was driving the car, was killed in the crash. He was a 17-year-old junior.

Services for Murphy will be at noon Saturday at Calvary Community Church, 5495 Via Rocas, Westlake Village.

An autopsy to determine the cause of Murphy's death was conducted Thursday, but the results were not available, said Capt. Ed Winter, assistant chief of the Los Angeles County Coroner's Office.

Two other boys in the car, both 17, suffered injuries including pelvic and spinal fractures. The boys, both juniors at Newbury Park High, will likely be released from UCLA Medical Center in three or four days, Brooks said.

A fourth boy in the car, also a 17-year-old junior, was released to his parents after the accident, which police suspect involved alcohol and drugs.

The youth told authorities the group of friends had been drinking near the Santa Monica Pier before the accident. Police found an empty liquor bottle, a marijuana pipe and an empty canister from a medical marijuana dispensary in the car.

The influence of alcohol in the crash was "apparent" to the deputies and coroner at the scene, partly because of the smell of alcohol, Brooks said.

Authorities declined to release the names of the injured students because they are minors.

Police said the five friends were heading home from a concert in Hollywood. Jim McGlashen, whose son has been friends with Murphy since elementary school, said he was surprised by the allegation that Murphy was drinking and driving.

"I was really shocked that it happened to Cody, because Cody was, of all the kids, the more serious driver," he said.

But McGlashen, a nurse, and others agreed that teens, alcohol, drugs and driving can be a deadly combination.

"It's far more pervasive than most of us are willing to acknowledge," said Athol Wong, principal at Newbury Park High. "We're not talking about two or three students out of 1,000 that are experimenting with something."

On campus, the mourning continued Thursday. The school canceled Thursday's track meet with Calabasas High, and counselors met with students struggling with their grief.

"Everybody's still in shock," counselor Richard Intlekofer said. "We're just in the mode of taking care of the kids."

But things were slowly starting to return to normal, Wong said. A few students briefly left class to compose themselves, and many were signing banners for the four students who survived the crash, Wong said.

From 1997 to 2007, 15 people were killed in Ventura County crashes in which the driver at fault was under the influence and from 16 to 19 years old, according to the California Highway Patrol. Two of those deaths occurred in the past four years.

The total number of collisions in the county involving inebriated teenage drivers has fluctuated year to year with no clear trend, with a low of 55 in 1997 and a high of 90 in 2006, the statistics show.

There's no one group of students that can be defined as more likely to drink and drive, said Officer Brandon Mumme of the CHP's Moorpark office.

"It ranges everywhere from your drama student to your straight-A student to your student who's just getting by to your athlete," Mumme said.

Bombarded with announcements and programs that tell them not to drink and drive, some students today seem to be more receptive to the message, but the problem remains largely unsolved, he said.

Like most high schools across the county, Newbury Park has programs to curb teenage drinking and driving.

Schools bring crashed cars onto campus, for example, and have students act out the part of accident victims. They bring police officers in to talk to students. They post charts outlining the legal consequences of driving drunk.

The programs have an effect on some kids, but not all of them, educators said. And too often, the impact fades, and students revert to old behaviors.

That's why Intlekofer believes students need constant reminders about the dangers of drinking and driving. And they need to hear that message from all the adults in their lives — parents, coaches, counselors and clergy.

"We need to follow up," Intlekofer said. "That's where we can do a better job."

In the next few months, high schools will be having proms and graduations, a time when celebrating students tend to drink and get into accidents. Schools annually organize programs to keep students safe, saying they might not be able to stop them from drinking, but maybe they can stop them from driving afterward.

"There might be different reasons why — stress, problems at home, peer pressure," Karla Arriaran-Rodriguez, a student assistance counselor at Moorpark High School, said of teen drinking. "We can't really determine who it is and who it's not. It's our teenagers."

Arriaran-Rodriguez plans to bring a crashed car onto her campus and tell students the story behind the accident. She'll also have a banner students can sign, pledging they won't drink and drive. And she's hoping a local cab company will provide discounted rides home for students who have been drinking or taking drugs.

After all, teenagers have not yet developed the judgment they need to think through the consequences of their behavior, educators said.

"They think they're invincible," said Cecilia Coe, principal of La Reina High School, a Catholic girls school in Thousand Oaks. "They make bad choices. They just don't think of consequences.

"But I don't think we should stop doing (these programs). It does sober them up a little bit."