A blood alcohol level of 0.18, more than double the 0.08 level for an automatic drunken driving conviction, was found in Cody Murphy, 17, the Newbury Park High School junior who was killed last month in the singlevehicle crash of the car he was driving in Malibu, said Los Angeles Sheriff's Department Traffic Sgt. Philip Brooks.

Autopsy results also showed Murphy had traces of marijuana in his system, but it wasn't believed to have been a factor in the accident, Brooks said.

Murphy was driving home from Santa Monica on Pacific Coast Highway on a school night at about 10 p.m. April 9 with four friends when his car hit the side of a mountain. According to a reconstruction analysis after the crash, investigators said they believe the car was going 90 mph before control was lost and the car hit the mountain and flipped repeatedly from end to end- front of the car to back of the car, not side to side- as it rolled over and over with the youngsters tumbling around inside.

The front right passenger, who was wearing a seat belt, suffered a cut on his head and was treated and released that night. The two boys in the back, who both suffered broken bones, were treated at UCLA Medical Center and released after a hospital stay.

None of those in the back seat was wearing a seat belt, Brooks said. Those inside the car during the accident told investigators the girl in the back had been standing up in the back seat vomiting out the window before the crash, Brooks said.

The young driver was wearing his seat belt, but the car was crushed and the restraint equipment couldn't save his life, Brooks said.

His friends told investigators they had finished off a large bottle of Jagermeister, an alcoholic liqueur, before the crash, but none of them said who had provided them with the alcohol, Brooks said.

"It is unusual for someone so young to have a 0.18 alcohol level- usually an inexperienced drinker would get sick or pass out before their alcohol level would get that high," Brooks said.

The legal limit for someone under age 21 is zero, he said. There's an extra penalty for adults who are convicted of driving with an alcohol level over 0.15 that includes jail time, higher fines and longer probation, Brooks said.

The 17-year-old girl from Camarillo was flown to UCLA Medical Center after the crash for what Brooks described as severe brain injuries but was released from the hospital with what appears to be no permanent brain damage. Brooks said doctors have told him that she will only have a scar on her skull as a physical reminder of the crash.

"Young people can heal remarkably well," Brooks said.

The totaled car will be donated to the Los Angeles County Sheriff's Teen Traffic Offender Program, a program that encourages those who see a teen driving under the influence of a substance to call 1-877-310-STOP (7867) and leave a message with the time, incident description and license plate number. A STOP deputy will follow up the call with a visit with the teen's parents, Brooks said.

"We will be bringing the car around wherever someone wants us to bring it to help other teens make the decision that they do not want to die," Brooks said.