An 18-year-old college student was found slain in her apartment late Thursday after friends said they could not contact her for several days.

Police are searching for the killer.

Brittany Evonne-Sarah Phillips was last seen Monday night, when she went to class at Tulsa Community College, authorities said. She apparently had been dead for a few days before her body was found, Sgt. Mike Huff said.

Phillips would have turned 19 on Monday.

"We would like to talk to anybody who has any knowledge of this girl or anybody who had been in and around her apartment this week," Huff said.

Friends tried to contact her this week, and when they couldn't reach her, someone went over to check on her.

Finding Phillips' apartment door unlocked, the friend went inside and found her body, Sgt. Kim Presley said. She lived alone in the apartment, police said.

Officers were dispatched to Phillips' residence at the Glen Eagles Apartments, 9407 E. 65th St., about 10:15 p.m. Thursday.

Huff said the Medical Examiner's Office is investigating the cause of Phillips' death, but it has already been ruled a homicide. Police did say that evidence indicated she suffered trauma that led to her death.

"We are looking at any similar assaults or any known criminals who are known to be in that area as well as other information that has come in from friends," Huff said.

Detectives are trying to determine how the attacker entered the apartment, Huff said.

Friends told police that Phillips was no longer working and she was going to school full-time. She was taking 16 hours of classes at TCC, said Lauren Brookey, the school's vice president for external affairs.

Her family members could not be reached for comment Friday afternoon.

Phillips' death is the 38th homicide investigated by Tulsa police this year.

Anyone with information about Phillips' death is asked to call Crime Stoppers at 596-COPS. Callers can be anonymous and the Crime Commission offers rewards for information that leads to arrests.

Nicole Marshall 581-8459