updated 10/13/2009 7:45:26 PM ET 2009-10-13T23:45:26

A UCLA student charged with slashing a classmate's neck during a chemistry lab brought a concealed, six-inch kitchen knife into the class and stabbed the woman five times, police said Tuesday.

Damon Thompson, 20, was charged with premeditated attempted murder for the attack on a female student standing next to him.

Los Angeles police Detective Alan Behnke said authorities were unable to determine a motive or whether the victim had been chosen at random. The woman, whose name was not released, was in good condition after spending time in intensive care.

Behnke said Thompson was cooperative but declined to speak to police.

The attack was deemed premeditated because Thompson allegedly brought the knife to the lab, but authorities had not determined how detailed his plans were.

"He hasn't clarified what his motive was," Behnke said.

Several people witnessed the attack, and a teaching assistant and a professor were able to stanch the blood flow by applying pressure to the victim's neck.

Witnesses told police Thompson walked calmly into a student information office and told a staff member he had stabbed someone.

Thompson's bail was increased from $1 million to $3 million during his arraignment Tuesday. A call to his public defender, Robin Berkovitz, was not immediately returned.

Complained about classmates
Police found the knife at the scene of the incident — a lab on the top floor of a building in the heart of the university on the west side of Los Angeles. Behnke said the attack lasted about 15 seconds, with the woman stabbed three times in an arm and hand and once each in the back and neck.

UCLA history professor Stephen Frank told the Los Angeles Times that Thompson wrote several e-mails last year complaining about classmates making offensive comments while he was taking a written exam.

Frank said he was present during the entire exam and saw nothing to support Thompson's complaints.

Thompson's relatives have said he is an only child who left his mother's home in Belize two years ago to attend UCLA.

Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


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