The man charged with driving in the wrong lane and causing a crash that killed four teenagers early Sunday morning bought a 12-pack of beer and attended a barbecue before the fatal accident, according to court documents.

Scott Owens' boss at a local welding company told police that Owens paid for a 12-pack of Tecate beer with a 20-dollar bill at Sunrise General Store on Old Las Vegas Highway on Saturday, according to a search warrant affidavit filed Tuesday in state District Court. Paul Esquivel, Owens' boss, also said he purchased a 12-pack of beer and a half-pint of vodka at the same time, the affidavit says.

Esquivel said Wednesday that he and Owens attended a barbecue at a friend's house on Rowe Mesa prior to the accident. He said he left with Owens, but got out of his car because Owens initially was headed home to Eldorado and Esquivel needed a ride into Santa Fe.

Owens later decided to drive into Santa Fe to visit his girlfriend, Esquivel said. Owens did not appear intoxicated when they left the barbecue, he said. Additionally, they never drank one of the 12-packs or the vodka, Esquivel said, and five people shared beers from the other 12-pack.

Owens was allegedly driving westbound in the eastbound lane of Old Las Vegas Highway just after midnight Sunday when he plowed into the passenger side of a red 1992 Subaru sedan carrying five Santa Fe teenagers. Four passengers — Rose Simmons, 15; Julian Martinez, 16; Alyssa Trouw, 16; and Kate Klein, 16 — were killed instantly.

The driver — 16-year-old Avree Koffman — was airlifted to University Hospital in Albuquerque with a fractured skull, fractured pelvis and other injuries. Koffman continues to improve, according to a statement from her father, Dan Koffman. She was awake for 15 minutes Wednesday and was responding to basic questions, such as "What is your name" and "What month is it," according to the statement.

Another search warrant filed Tuesday says a waiter at Harry's Roadhouse on Old Las Vegas Highway told a New Mexico Department of Public Safety officer that he saw Owens between 9:30 p.m. and 10:30 p.m. Saturday at The Matador, a downtown bar. The waiter said he saw Owens near the bar area of the business and recognized him because he'd hung out with Owens' roommate in the past, the affidavit says.

Santa Fe County Undersheriff Robert Garcia said Wednesday that detectives continue to investigate the case, though they have discovered no evidence to indicate that the crash occurred differently than the details released previously. No alcohol containers, open or closed, were initially found in either vehicle involved in the crash, though investigators are still processing the cars. A glass pipe was found in Owens' Jeep, according to court documents.

Owens' blood-alcohol content will not be available for possibly another two weeks, Garcia said, though he said his agency has asked it to be rushed. Blood was taken from Koffman as well, and those results may be available at the same time, he said.

About 1,000 people attended a memorial service Wednesday at Temple Beit Tikva on Old Pecos Trail for Klein, a Santa Fe Preparatory student.

Trouw was born on July 4, and her family will hold a memorial service for her at 10 a.m. Saturday at Santa Fe Prep.

Services for Simmons are set for 11 a.m. Saturday at the Santa Fe Mountain Center, 1524 Bishop's Lodge Road.

A memorial for Martinez is set for 4 p.m. Sunday at Warehouse 21. An account has been set up for people who want to donate money to help cover expenses for Martinez at Century Bank.

Contact Jason Auslander at 986-3076 or :jauslander@sfnewmexican.com.